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The onshore RMB closed at 7.2615 yuan against the US dollar at night, down 124 points from Tuesday's night closing. The turnover was $57.609 billion.Chief Financial Officer of Uber: "Very confident". At least in the first few quarters of 2025, the mobile business will grow at a rate of "10% to 20%".Trump's nominated director of NASA said that his future mission of cooperating with SpaceX would be put on hold. On December 11th, local time, jared Isakman, the director of NASA nominated by US President-elect Trump, said that his future private astronaut mission planned to cooperate with SpaceX of elon musk might be put on hold. Isaac Mann said that the future of the Polaris Project is still a "question mark".

Scientists observed semi-Dirac fermion for the first time, and scientists from Pennsylvania State University and Columbia University joined hands to observe a special kind of quasi-particle-semi-Dirac fermion for the first time. Such quasi-particles have mass when moving in one direction, but lose mass when moving in the other direction. The researchers said that in-depth research on these quasi-particles is expected to promote the development of next-generation batteries, sensors and other technologies. Related papers were published in the new issue of Physical Review X.The onshore RMB closed at 7.2615 yuan against the US dollar at night, down 124 points from Tuesday's night closing. The turnover was $57.609 billion.The performance of deep thinking AI model exceeds the existing weather forecast. A study published in the new issue of Nature reported the latest machine learning model introduced by deep thinking. The model can make reliable probabilistic weather forecast according to current and future weather, and its performance not only exceeds the best traditional medium-range weather forecast, but also can better predict extreme weather, tropical cyclone route and wind energy production.

Brazil raised the benchmark lending rate by 100 basis points to 12.25%. Brazil's central bank expects the next two meetings to raise interest rates by the same amount.Swiss national bank: ready to intervene in the foreign exchange market when necessary.Economic Daily: "Stabilizing the stock market" strongly guides stabilizing expectations. The article said that the key to stabilizing the stock market is to stabilize confidence. Recently, the stock market has been active in trading, and investors' confidence in the economic improvement and corporate profits has improved. All parties look forward to leveraging the stock market as the entry point to further stabilize the economy and steady growth. This expectation can only form a continuous positive feedback if it is mutually reinforced with the positive signals on the economic side. In the future, it is necessary to continue to improve the forward-looking, targeted and effective macro-control, urge all localities and departments to implement the defined policies and measures as soon as possible, solidly promote the economic upward, structural improvement and sustained development, and promote confidence boost and a virtuous circle and spiral rise in economic fundamentals.