Life newspaper May 19 th The wild Siberian tiger was first discovered in China on May 20 last year, and it has been occupied by Raohe County and surrounding forest farms for a whole year. Experts say that in its mind, this area is its territory. It used to be just a transit, and there is no sign of leaving this year. The natural environment in our province is improving, which provides a broad living space for the Northeast Tiger. Moreover, this Northeast Tiger is a "foodie". According to the statistics so far, it has eaten five roe deer, two wild boars and a cow.

　　According to Sun Chengfu, director of the Wildlife Protection Office of Raohe Forestry Bureau, after follow-up research, DNA identification and behavioral research, it has been confirmed that this tiger has settled in our province, but it is not the only one that is hard to say, because there are reports of activities of the Northeast Tiger in other forest areas.

　　　What did you do this year?

　　　1. A large number of claw marks were found on the trunk of contiguous forest land.

　　"This tiger has formed a fixed territorial scope, showing a specific demarcation behavior of wild animals." Sun Chengfu said. The territory of the wild Siberian tiger is about 1000 square kilometers for males. The contiguous forest land here is suitable for the Siberian tiger to settle down, and its forest area is close to 1000 square kilometers.

　　"When the Northeast Tiger takes a fancy to a place, it will leave paw marks on the tree and mark the boundary with urine. If there are these marks, other tigers will not invade without authorization." Sun Chengfu said that they found a lot of claw marks on the thick trunk of the territory boundary, which is called "hanging claws", and urine was collected in winter.

　　　It has been found to have eaten five roe deer, two wild boars and a cow.

　　On December 12 last year, Sun Chengfu and his colleagues took more than 100 photos of the Northeast Tiger eating cattle with a far-infrared camera, which is quite precious. On the same day, they received a report from the villagers that his old cow might have been attacked by the Northeast Tiger. Sun Chengfu rushed to the scene and found that the cow was eaten by a third of the tiger. More than 200 kilograms of adult cattle, the Siberian tiger killed it effortlessly, and dragged the body for hundreds of meters, hiding it in a deep ditch on the edge of the corn field. Sun Chengfu judged that the tiger would come back if the beef was not finished, so he arranged the shooting equipment nearby. Sure enough, the next day, the Siberian tiger returned to the scene and moved the beef to eat again.

　　Sun Chengfu said: "From the photos, this Siberian tiger is strong and well-nourished, indicating that there is enough food. According to statistics so far, it has eaten five roe deer, two wild boars and one cow. "

　　I went back to Russia to "find someone" and came back two months later.

　　This tiger went back to Russia once, and Sun Chengfu speculated that it was going back to "find an object". In the middle of December last year, during the patrol, Sun Chengfu found that the tiger trail extended to the Sino-Russian border. He tracked it for more than 20 kilometers and found that the tiger trail crossed the center line of the main channel of the Wusuli River and disappeared on the Russian side.

　　Two months later, the Northeast Tiger returned to the territory of Raohe County. Sun Chengfu said: "After mating, the Northeast tiger went back to its territory, and this tiger returned to China, which once again proved that it had settled in our province."

　　　4. I once strolled to the human activity area, 10 meters away from the fishing room.

　　"Leave as soon as possible in case of the remains left by tigers. Maybe the Northeast Tiger is not far away." According to reports, this Siberian tiger is not afraid of people, and it has been recorded in the vicinity of human activities. The last time it was 10 meters away from the fishing house by the river. On the 16th, Raohe Forestry Bureau issued an announcement to remind the general public, "Don’t enter the mountain at will for personal safety". According to reports, local residents generally walk together in the mountains, carrying firecrackers with them, driving tigers away with firecrackers, and trying to stay away from the Northeast Tiger activity area.

　　First discovery: May 20th last year.

　　A five-or six-year-old male adult tiger left a trail of footprints in farmland.

　　Raohe County is located in the northeastern border of our province, with a border line of 128 kilometers and a forest coverage rate of 51%. This area is one of the important corridors and activity areas for Siberian tigers to enter China from Russia. In recent years, many Siberian tigers have been active in the forestry application area here.

　　"This Siberian tiger was first discovered on May 20 last year. From this day, it has been here for one year." Sun Chengfu said.

　　Last year, a series of footprints left by the Northeast Tiger in the farmland exposed its whereabouts. "At that time, experts from the Cat Research Center of Northeast Forestry University happened to be investigating in Raohe River. After discovering the paw prints, the experts unanimously concluded that it was the footprints of the Northeast Tiger. Through the size and depth, the experts thought it was a male adult tiger, and the tiger was five or six years old." Sun Chengfu said.

　　Goodbye tiger trail: March 1 this year

　　The feces of Amur tiger collected again are the same as before.

　　The local animal protection staff conducted a follow-up study. In addition to taking photos and infrared cameras, they also collected the feces of Siberian tigers many times. On March 1, 2018, the tiger trail was found again in Shiye District of Tonghe Forest Farm. After 7 days of tracking, the wildlife department of Forestry Bureau collected the feces of the Northeast Tiger again and sent it to Northeast Forestry University for DNA identification. Compared with the previous feces, it was judged to be the same tiger.

　　Video tiger: April 23 this year

　　20 pairs of far-infrared devices captured 3 seconds of video.

　　Sun Chengfu said that 20 pairs of far-infrared camera equipment have been put into the territory of the Northeast Tiger, each pair of equipment includes a camera and a video camera, 10 warning signs have been set up in key activity areas, and 14 patrolmen are responsible for the protection and investigation of the Northeast Tiger. At 3 o’clock in the morning of April 23 this year, infrared camera equipment captured a 3-second video of the Northeast Tiger. The video shows that this Siberian tiger walked deep into the jungle through the forest road. This is the only video of this Siberian tiger.

　　Recent trail: May 10th this year.

　　I enjoyed another wild boar more than a week ago.

　　Sun Chengfu said that on May 10 this year, it was the last time they photographed the trail of this wild Siberian tiger. A wild boar killed by it had been hollowed out. "The pork hasn’t had time to eat, which means it may be not far away, so I only took a photo at that time and immediately evacuated."

Today, let’s take a look AT the AT gearbox and the dual clutch gearbox, which one should we choose? Please see next.

AT gearbox:Variable speed is realized by hydraulic torque converter and planetary gear set. Hydraulic torque converter uses liquid to transmit power, which can cushion the power impact of the engine; Planetary gear sets realize different transmission ratios according to different combinations.

dualclutchtransmissionThe odd and even gears are controlled by two clutches, which is equivalent to integrating two sets of manual gearboxes. When shifting gears, prepare the next gear in advance to realize fast shifting.

Shift speed: the shift speed of dual clutch gearbox is extremely fast, usually only about 0.2 seconds, while AT gearbox is relatively slow.

Transmission efficiency: the transmission efficiency of dual-clutch gearbox is high, and the power loss is small, which can generally reach about 85%-90%; The transmission efficiency of AT gearbox is relatively low, about 70%-85%.

Driving experience: the dual-clutch gearbox is more direct and neat when shifting gears, which can bring better driving pleasure, but it may have a sense of frustration when driving at low speed; The shift of AT gearbox is relatively smooth and comfortable, but the dynamic response may not be as direct as that of dual clutch gearbox.

Structural complexity: AT gearbox has a complex structure, including hydraulic torque converter, planetary gear set and other components; The structure of dual clutch gearbox is relatively simple, similar to manual gearbox.

Cost: Generally speaking, the manufacturing cost of AT gearbox is high, especially the high-end AT gearbox; The cost of dual clutch gearbox is relatively low, especially dry dual clutch.

Good ride comfort: the existence of hydraulic torque converter makes the shift process softer, the shift feeling is obvious and the driving comfort is high.

Large torque bearing: able to bear large engine torque output, suitable for all types of vehicles, including high performance and large vehicles.

Mature technology: it has a long history of development, relatively mature and stable technology, high reliability and low failure rate.

Simple operation: the driver only needs to control the throttle and brake, and there is no need to manually shift gears, so the operation is simple and easy.

Disadvantages:

Low transmission efficiency: power will be lost in the transmission process, resulting in relatively poor fuel economy.

Complicated structure: The complicated structure makes AT gearbox bulky, heavy and costly to manufacture.

Slow shift speed: compared with the dual clutch gearbox, the shift speed is not fast enough, which affects the dynamic response and acceleration performance of the vehicle to some extent.

High fuel consumption: Due to the low transmission efficiency and its own structural characteristics, the fuel consumption of AT gearbox vehicles is relatively high.

Fast shift speed: it can complete the shift operation in a very short time, and the power interruption time is short, which can provide better acceleration performance and driving experience.

High transmission efficiency: direct power transmission reduces energy loss and improves fuel economy, especially at high speed.

Simple structure: Compared with AT gearbox, it is relatively simple in structure, small in size and light in weight, and easy to install and arrange on vehicles.

Low cost: the manufacturing cost is relatively low, which helps to reduce the price of the whole vehicle.

Disadvantages:

Low-speed setback: Under low-speed driving, frequent start-stop or congested road conditions, there may be setbacks, which will affect driving comfort.

Reliability problem: There were some reliability problems in the early dual-clutch gearbox, such as clutch overheating and wear, but with the continuous improvement of technology, the reliability has been greatly improved.

High heat dissipation requirements: especially for dry dual-clutch gearbox, because there is no oil immersion to dissipate heat, long-term intense driving or frequent gear shifting will easily lead to overheating, which will affect performance and life. The wet dual-clutch gearbox dissipates heat through oil, which is relatively good, but the cost is high.

High maintenance cost: The clutch plates and other parts of the dual-clutch gearbox are vulnerable parts, which may need to be replaced after a certain mileage, which increases the maintenance cost.

So, friends, which gearbox do you prefer?

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　　[Special correspondent of Global Times in the United States, Germany and Canada Xiao Da Qing Mu Tao short room Chen Kang Liu Yupeng] The United States and NATO formally submitted a written reply on bilateral security guarantees to Russia on the 26th. Although the United States and NATO refused to disclose the specific details of the reply, US Secretary of State Blinken made it clear at the press conference that she had rejected Russia’s most concerned request of "not accepting Ukraine to join NATO".

　　In response, the Russian side responded strongly on the 27th, saying that the responses of the United States and NATO indicated that the United States was prepared to confront Russia directly and engage in global confrontation. In the past two days, the United States and its allies have been sending weapons to Ukraine, while constantly rendering that Russia will still "invade Ukraine." US Deputy Secretary of State Sherman insisted that "Russia is ready to use force against Ukraine in mid-February". British Prime Minister Johnson threatened that if Russia "invaded" Ukraine, Britain would send troops to protect its European allies. Many international analysts worry that this kind of hype will not only help solve the Ukrainian problem, but may even push the crisis into the abyss of war. On the 27th, Wang Yi, State Councilor and Foreign Minister of China, said on the phone with Blinken at the request that we call on all parties to remain calm and not to do anything to stimulate tension and exaggerate the crisis. Wang Yi emphasized that one country’s security cannot be at the expense of other countries’ security, and regional security cannot be guaranteed by strengthening or even expanding military blocs.

　　NATO rejects the "red line" drawn by Russia.

　　Russian Deputy Foreign Minister Grushko met with U.S. Ambassador to Russia Sullivan on the 26th, RIA Novosti quoted a statement from the Russian Foreign Ministry on the 27th. During the talks, Sullivan handed over the written reply of the US government to the draft bilateral security guarantee submitted by Russia. However, the Russian Foreign Ministry did not explain the specific content of the US written reply in the statement. The Russian side said that the United States asked Russia to keep the specific content confidential.

　　"The United States has rejected Russia’s ‘ Ukraine is prohibited from joining NATO ’ The core requirements. " The British Broadcasting Corporation (BBC) said that Blinken said at a press conference on 26th that the Biden administration’s position "has not changed", the United States will not give in to Russia’s core demands, and NATO will maintain its open policy for all countries to join the alliance. "The door of NATO will always be open, which is our commitment." Blinken also said that the United States still believes that Moscow is ready for invasion. "There is no doubt that we are taking actions with the same emphasis and strength to strengthen Ukrainian defense and prepare for a rapid and unified response to Russian aggression." However, he also said that he would meet again with Russian Foreign Minister Lavrov in Geneva on Friday to solve the security concerns of both sides, including improving military transparency.

　　"NATO directly rejected Russia’s ‘ Red line ’ " The "Russia Today" website said that 30 NATO member countries jointly recognized the written reply to Russia, and on the 26th, it was also submitted to Russia by the US Ambassador to Russia Sullivan. NATO Secretary General Stoltenberg also said at the press conference on 26th that NATO "will not compromise" on the issue that "Ukraine, Georgia and other former Soviet republics may join NATO". He also said that NATO is still strengthening its presence, including in the Baltic Sea and the Black Sea.

　　Russia will provide weapons to Udong?

　　"The reply of the United States is to go into direct conflict with Russia." Russian newspaper Viewpoint quoted Dzhabarov, a member of the Russian Federal Council, as saying on 27th that Russia would not accept the response of the United States to Russia’s security guarantee proposal, which was unsatisfactory. He said: "The response of the United States shows that the United States wants to go to direct conflict with Russia and prepare for global confrontation." Regarding Stoltenberg’s statement that he would continue to strengthen NATO’s presence in the Baltic and Black Seas, Dzhabarov said: "Stoltenberg is completely insane. He doesn’t know what he’s talking about. I don’t think it is necessary to value him. " Russian Congressman Nikonov proposed: "For the United States and NATO to reject Russia’s core security proposal, we will soon formulate a response measure … … It seems that we will start from the armed Donetsk and Lugansk republics (two republics in eastern Ukraine that declared their independence by themselves — — Editor’s note) Start. "

　　Peskov, Russian Presidential Press Secretary, said on the 27th that Putin had received a reply from the United States to the security proposal, and he would hold consultations with members of the National Security Council. "Let’s not jump to any conclusions." Peskov said that Washington’s reply gave no reason for optimism. Regarding whether Putin will agree to provide weapons to Donbass (the Republic of Donetsk and Lugansk) to counter the United States and NATO, peskov said: "The President is well aware of this view, and he has not made a decision on these proposals. But the suggestions of parliamentarians highlight how angry Russia is. "

　　Russia’s Independent newspaper said that Russian Foreign Minister Lavrov said in a speech in the State Duma on the 26th that Russia would reserve the right to take tough measures against the response of the United States and NATO. He said: "If the United States does not respond constructively and the West continues its aggressive line, then Moscow, as Russian President Vladimir Putin has repeatedly said, will take necessary retaliatory measures." He also said that while some western countries evacuated their personnel from Ukraine, they sent weapons to Ukraine, which was causing "hysterical military fanaticism".

　　Germany and France are different from the United States and Britain.

　　The crisis between Russia and the United States and the West was triggered by the US side’s exaggeration that Russia would "invade Ukraine". Now American officials are still speculating on this topic, but the predicted time point has changed many times. US Deputy Secretary of State Sherman claimed at the video conference of the European Strategic Forum on 26th that the United States insisted that Russia was still preparing to "invade Ukraine". She said: "All the signs we have seen indicate that Russia will use force at some point, possibly between now and mid-February." Sherman also provoked that the Beijing Winter Olympics will be held soon. "If Putin chooses to use force at that time, China leaders will be unhappy. This may affect the timing of Putin’s choice (use of force). " Previously, Bloomberg News of the United States had deliberately spread the false news that "China asked Russia not to invade Ukraine during the Beijing Winter Olympics", which was denounced as a "despicable trick" by a spokesman for the Russian Foreign Ministry, saying that it was "not only a slander and provocation to Sino-Russian relations, but also a deliberate interference and sabotage to the Beijing Winter Olympics".

　　Recently, Britain has also been constantly arching the fire over the Ukrainian crisis. The BBC said that British Prime Minister Johnson said in a speech in Parliament a few days ago that if there is a conflict between Russia and Ukraine, "we will seek to contribute to any new deployment of NATO to protect our allies." However, when asked whether Britain would send troops to Ukraine, Johnson went soft again. He said that no NATO member is ready to send a huge combat force to Ukraine because Ukraine is not a NATO member.

　　Different from the way the United States and Britain play up the crisis and stimulate tensions, European powers such as Germany and France prefer to solve the crisis through diplomacy. "Deutsche Welle" said on the 27th that Biden had publicly warned that if Russia "invaded Ukraine", it would consider directly sanctioning Putin. Earlier, Russia had responded to the provocation of the United States about sanctions against Putin, saying that sanctions against Putin were "equivalent to severing relations between the two countries." According to the report, while Biden publicly threatened to sanction Putin, German Chancellor Angela Scholz and French President Jacques Macron both said that they would use diplomatic means to solve the Russian-Ukrainian crisis.

　　Russia, Ukraine, Germany and France held the "Normandy model" four-party talks in Paris on the 26th. After eight hours of deliberation, Russia and Ukraine agreed to continue to abide by the ceasefire agreement in eastern Ukraine, and a new round of talks was held in Berlin two weeks later. This progress was praised by Germany and France. The French presidential palace said that the difficult talks finally achieved positive results, "we received a good signal." Macron also said that he will hold a telephone conversation with Putin on the 28th. "We will never give up the dialogue with Moscow."

　　Reuters said on 27th that Germany was accused of "betrayal" because it refused to provide weapons to Ukraine like other western countries, and the German government said on 26th that it would provide Ukraine with 5,000 military helmets. This plan was denounced as a "joke" by Kiev Mayor Kritchenko. However, German Defense Minister Lambrecht insisted on 26th that Germany would not send deadly weapons to crisis areas "because we don’t want to aggravate the situation".

　　"Every effort must be made to avoid war"

　　"Will the war begin after the United States and NATO reject Russia’s core security requirements?" RIA Novosti issued such a question on the 27th. In fact, the negative reaction of the United States to Russia’s proposal will not surprise Russia. The report said that the United States promoted the escalation of the situation in Ukraine and even prepared to drag Russia into the war at the expense of Ukraine in order to consume Russia’s strength and weaken the relationship between Europe and Russia. Russia and Europe have long been divided, which is in the interest of Anglo-Saxons. With the help of the Ukrainian issue, the United States can contain Russia and dominate European affairs.

　　"Every effort must be made to avoid war," Russian "Viewpoint" quoted Medvedev, vice chairman of the Russian Federal Security Council, as saying in a joint interview with the media that if there were a direct conflict between Russia and NATO over the Ukrainian issue, "it would be the most tragic and simply catastrophic situation. I hope this will never happen. " He said that the only possibility to avoid war is to reach an agreement. Russia needs security to eliminate the obvious threat that has already formed. If Ukraine joins NATO, new military bases and new offensive weapons will appear near the border with Russia.

　　When answering whether Russia and China will form a military alliance to put pressure on the containment of the anti-American West, Medvedev said that Russia and China do not seek to establish a military alliance, but "the level of relations between the two countries is at an all-time high, which affects the balance of power in the world".

　　On 26th, Wang Yi, State Councilor and Foreign Minister of China, telephoned Blinken at the request, and his position on the Ukrainian issue attracted the attention of the international media. "Foreign Minister China warned Blinken to take Russian security concerns seriously." The German newspaper Sü ddeutsche Zeitung said that Wang Yi called on all parties to remain calm and not to do anything to stimulate tension and exaggerate the crisis. He stressed that all parties should form a balanced, effective and sustainable European security mechanism through negotiations, and Russia’s legitimate security concerns should be taken seriously and resolved.

　　Xinhua News Agency, Chengdu, April 6 (Reporter Yu Li, Feng Changyong) The reporter learned from the China Giant Panda Conservation and Research Center, which has the largest captive giant panda population in the world, that the center has completed nearly half of the breeding and breeding tasks of captive giant pandas this year, and the giant panda breeding has entered a peak period.

　　By the end of 2015, the number of captive giant pandas in the center had reached 218. Zhang Guiquan, director of Ya ‘an Base of China Giant Panda Conservation and Research Center, said that this year, 26 female pandas and 19 male pandas participated in the national captive giant panda breeding program. Since the first female panda was bred in late February, as of April 6, 10 female pandas have been bred. Among them, 6 were bred by natural mating, the other 2 were bred by natural mating with artificial insemination, and the remaining 2 were completely artificially inseminated.

　　"So far, this year’s breeding work has been completed well. The biggest feature is that the natural mating rate is relatively high, and the pregnancy rate of female pandas that have successfully mated naturally is over 90%, which is a good momentum for this year’s breeding work." Zhang Guiquan said.

　　"Under the current captive conditions, the number of male giant pandas with natural mating ability is very rare, accounting for less than 5% of the population. This year, the center belongs to the 7-year-old male giant panda ‘ An An ’ The first successful natural mating at Ya ‘an base on February 29th marks the addition of a male animal with natural mating ability to the captive giant panda population, which also shows that the quality of our captive giant panda population is constantly improving. " Zhang Guiquan said.

　　According to reports, at present, the artificial breeding of captive giant pandas in China is included in the unified planning, and the optimal pairing is carried out according to the principle of eugenics, so as to ensure the genetic diversity of the population to the greatest extent. There are 56 female pandas participating in the breeding program this year, and more than one third of them are from the China Research Center for the Protection of Giant Pandas.

　　There are three major problems in the development of captive giant panda population: difficulty in estrus, difficulty in mating and conception, and difficulty in survival of cubs. According to zhangxin, the breeder of the center, giant pandas are in estrus every spring. With the increase of temperature, their hormone level, estrus behavior and mating desire will decrease from May, which will affect the mating quality. Therefore, March and April are the prime time for giant pandas to breed. In order to ensure that female pandas are pregnant, some will also receive artificial insemination as appropriate after natural mating.

　　In recent years, the artificial breeding of giant pandas in the center has been carried out at Bifengxia base in Ya ‘an. The reporter saw at the base on the 6th that the staff was preparing to breed the 7-year-old female panda "Jojo". Because Jojo’s estrus behavior was not typical enough, she was not allowed to mate naturally. In this regard, Zhang Guiquan said that this is a normal situation.

　　It is reported that female giant pandas not only have a short estrus time, but also need to mate with each other to be successful. If there is no electricity between pandas, mating may fail even during estrus. In addition, even if natural mating is successful, it is very difficult for female giant pandas to finally give birth to panda babies — — Their eggs can only survive for 36 to 40 hours. Even with breeding, only 30% to 40% of female giant pandas can get pregnant successfully, while the survival rate of their cubs is less than 40%.

　　By making good use of the powerful engine endowed by the era of big data, we can seize new opportunities, cultivate new kinetic energy, shape new advantages, and push China’s economy to ride the wind and waves in the digital tide and sail for a bright future of high-quality development.

　　Give birth to new formats, smooth the industrial chain, and let thousands of enterprises "count" into gold. Big data is the driving force for high-quality economic development; Data runs more and people run less errands, making "one network runs" and "one run" the norm. Big data is an "accelerator" to optimize the business environment and improve service efficiency; Dynamically reflect the development trend of economic and social indicators, multi-dimensional and multi-faceted reflect the effect of policies, making social management more refined and intelligent. Big data is the "golden key" to improve the modernization of social governance system and governance capacity … …

　　With the rapid development of digital economy, the huge "treasure" of data is showing unprecedented use value and development potential. During the epidemic prevention and control period, the data in transportation, communication, consumption, taxation, finance and many other fields were organically integrated, which provided effective guidance for epidemic monitoring, prevention and treatment, and resource allocation, helped epidemic prevention and control and resumed production, and became a successful practice for big data to promote economic and social development. The wide application of big data products such as "Health Treasure" has made a vivid data popularization for the whole society, highlighting the significance of big data as a basic strategic resource.

　　The historical experience of human social development shows that every major change in economic form often gives birth to and relies on new factors of production. Just as labor and land are the main factors of production in the agricultural economy era, capital and technology are important factors of production in the industrial economy era. In the digital economy era, data is gradually becoming a new factor of production that drives economic and social development. The Opinions of the Central Committee of the Communist Party of China and the State Council on Building a More Perfect System and Mechanism for Market-oriented Allocation of Factors released last year listed data as one of the five major factors of production, emphasizing the need to speed up the cultivation of the data factor market. Taking data as a factor of production shows that with the acceleration of digital transformation of economic activities, the multiplier effect of data on improving production efficiency is prominent. This is also an important change in the production factors with the most characteristics of the times. As one of the leading countries in the development of global digital economy, China should attach great importance to the important value of data as a new production factor, accelerate the transformation of big data into real productive forces, and inject new kinetic energy and vitality into economic and social development.

　　Make good use of big data, and open sharing is the foundation. The value of big data is first reflected in "big". The accumulation of data is a process from quantitative change to qualitative change. When the development and utilization of data are limited to a certain unit, an industry or a certain field, it will form an information island and it is difficult to play its effective value. To realize the orderly and effective opening of data information in the whole society, it is necessary to establish a public service system for the circulation of data elements, which includes "inter-departmental" data sharing, "government-enterprise" data opening and "enterprise-enterprise" data financing.

　　Using big data well, efficient configuration is the key. As a factor of production, data should be allocated according to the principle of marketization. Under the condition of socialist market economy, it is necessary to give full play to the decisive role of market in allocating resources, smooth the flow channels of data elements, ensure that different market entities have equal access to big data, and maximize benefits and optimize efficiency through market competition in accordance with market rules. At the same time, it is necessary to give full play to the role of the government, improve government regulation and supervision, create a fair market competition environment, and ensure the free flow, safe control and fair competition of data elements.

　　Make good use of big data and standardize according to law is the guarantee. Big data is a "double-edged sword". In the context of the continuous upgrading of information technology, problems such as privacy leakage and "killing" of big data have become increasingly prominent, which has made many people afraid of "counting" and even began to resist data collection and use. To deal with the new problems brought by big data, we must speed up the formulation of relevant laws and regulations and set good rules for the collection, storage, use and release of big data. There are no outsiders in information security. Big data is related to the vital interests of every member of society. Only by standardizing according to law can we foster strengths and avoid weaknesses, and constantly create a healthy, efficient, orderly and controllable big data development environment.

　　Big data contains big opportunities and drives the big future. By making good use of the powerful engine endowed by the era of big data, we can seize new opportunities, cultivate new kinetic energy, shape new advantages, and push China’s economy to ride the wind and waves in the digital tide and sail for a bright future with high quality development.

　　Biden can’t stop, and the world has to guard against it!

　　In order to boost the economy and compete with China, Biden has worked hard. No, not long after the $1.9 trillion COVID-19 bailout bill was passed, he wanted to build large-scale infrastructure, and it was $2.3 trillion at first.

　　However, the United States, the world’s largest "landlord", has no surplus food. Such a large sum of money can only be taken from the rich and enterprises in the United States, but how can the rich allow the new president to "operate on them"?

　　On April 1st, McConnell, the minority leader of the US Senate and a Republican, released malicious words to lead the Republican Party to fight to the end.

　　On April 1st, McConnell was interviewed by the media in Kentucky. Source: dailymail

　　But Biden has made up his mind and hopes that Congress will approve this $2.3 trillion infrastructure plan this summer. However, even if the cakes of the rich and enterprises are moved, this huge sum of money is still not enough.

　　Where did the rest of the money come from? More importantly, is this plan a revival or a trap for the United States and the world?

　　Want to bully the bow again?

　　After Biden announced his ambitious infrastructure plan, US stocks soared, and the S&P 500 index broke through the 4000 mark for the first time in history with the help of technology stocks.

　　But not everyone welcomes this new plan.

　　"Personally, I like Biden. I mean, we were friends for a long time." But this does not affect McConnell’s position on the infrastructure plan. After comparing Biden’s infrastructure plan to a "Trojan horse" with a hidden crisis, McConnell again rejected the new proposal of "old friends" on April 1. He said that the government did not get the authorization of voters, and then increased taxes on enterprises and the rich with annual incomes exceeding $400,000.

　　"My view on infrastructure is that we should build affordable infrastructure, instead of hitting the economy by substantially increasing taxes and not increasing the burden of national debt." McConnell said.

　　"There are huge differences between us, which makes it more and more difficult for us to reach a consensus." He said that Biden’s infrastructure plan will not be supported by any Republican senator. This means that if Biden wants to push the plan through, he must ensure that the Democratic senators are United enough and do not run for one vote.

　　Is it so yellow? Xu Mingqi, a distinguished researcher at Shanghai Institute of International Finance and Economics and vice chairman of Shanghai International Economic Exchange Center, believes that it is still possible for the Democratic Party to push the $2.3 trillion infrastructure plan through.

　　According to American media reports, it seems that the Democratic Party does not intend to bite the hard bone of the Republican Party. Instead, it plans to stage the scene of pushing the $1.9 trillion bailout bill again, start the legislative process of "budget coordination", bypass the Republican Party, and pass legislation by a simple majority.

　　Where did so much money come from?

　　Biden and the Democratic Party, who are eager to get the $2.3 trillion infrastructure plan approved this summer, have started the "I don’t listen, I don’t listen, I don’t listen" mode.

　　However, in addition to the Republican Party, there are also public opinions from all walks of life who question Biden.

Most Americans think that investing in infrastructure is right, but there are many disputes about the source and destination of funds. Source: GJ

　　Where the money comes from is a serious problem.

　　The Wall Street Journal shouted "Biden tax is coming". Although Biden did not specify whether the "annual income exceeding $400,000" was aimed at individuals or families, the commentary said that "the middle class in the United States will bear the largest tax increase since 1968".

　　Biden tax is coming. Source: wsj webpage screenshot

　　For American companies that have enjoyed the "welfare" of large-scale tax reduction since 2017, it is even more unacceptable to increase the federal corporate income tax rate from 21% to 28%, increase the minimum tax rate of overseas profits of American companies from 10.5% to 21%, and reduce the tax breaks enjoyed by fossil energy companies.

　　However, the tax increase is not enough to offset Biden’s self-proclaimed "unparalleled in the world" and "once in a generation" infrastructure costs. According to the calculation of Schneider, an analyst at Cornerstone Macro Consulting, the infrastructure plan will also lead to a cumulative increase of about 500 billion US dollars in the US fiscal deficit.

　　The federal government’s fiscal deficit, which has soared year after year, makes people worry about the risk of subprime mortgage crisis.

　　As long as "trillion" can recover?

　　"How did Biden become a president with a dollar sign ($)?" A commentary on the American political news network wrote, "But when all the money is spent, will anyone really feel the change?" Both the author of this article and the British newspaper The Guardian believe that Biden’s infrastructure plan may, in the end, be like the economic stimulus policy during the Obama administration. At first, he made lofty words with great ambition, but in the end, he "didn’t leave too many traces".

　　Of course, "change" will still happen, but it may not be the kind that Biden and Democrats want.

　　The American media pointed out that Biden’s new plan seems to create millions of jobs for the United States, but the substantially increased corporate tax rate will force enterprises to pass on costs.

　　At the same time, Americans themselves are not sure about the stimulus effect of infrastructure projects on the economy. Willcocks, who once led the domestic economic department of the Federal Reserve and served as a senior adviser to the chairman of the Federal Reserve, said that paying for infrastructure costs by "robbing the rich" would "greatly reduce the economic growth potential". Some economists believe that economic recovery in the post-epidemic era is a long process, and artificially stimulating the economy may lead to overheating, trigger a new round of inflation, and make consumer goods prices rise, the yield of long-term US government bonds rise, and even financial turmoil. In the end, ordinary Americans will be forced to pay for all the consequences.

　　Faced with these concerns, the Federal Reserve said that the government would effectively control the price increase, but former US Treasury Secretary Summers expressed doubts. In an interview with Bloomberg, he said that the hyperinflation experienced by the United States in the 1970s is no different.

　　Former us treasury secretary summers. Source: businessinsider

　　As for the impact of Biden’s "drastic measures" on the global economy after the $1.9 trillion rescue bill, Xu Mingqi said that due to the demand for infrastructure raw materials in the United States, it may play a certain role in pulling the global economy and promoting China’s export of related raw materials to the United States.

　　However, it is worth noting that inflation in the United States has started and negative economic effects have emerged, which will bring significant spillover effects and have a negative impact on the global economy.

　　Georgieva, managing director of the International Monetary Fund, recently warned that the accelerated economic recovery in the United States may lead to a rapid increase in interest rates, which will lead to a sharp tightening of the global financing environment and a large amount of international capital flowing out of emerging and developing economies. This will especially bring serious challenges to middle-income countries with huge external financing needs and high debt levels.

　　And global price increases will also be inevitable. The rising prices of oil, steel, nonferrous metals and other commodities will be transmitted to the downstream, which will lead to the general increase of household appliances and construction machinery, and the pressure of imported inflation faced by some economies will also increase.

　　This is not all. According to the US Political News Network, a $2 trillion money-throwing plan focusing on education and medical care is still on the way. Even so, some Democrats are still disgusted that the scale of money-throwing is not large enough.

　　Rep PraMilla Jayapal, a Democrat, thinks that the scale of the infrastructure plan should be even larger. Source: wsj

　　It seems that Biden can’t stop and the world has to guard against it.