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The turnover of A-shares has exceeded one trillion yuan for 50 consecutive trading days. On December 10th, the A-share market opened higher and went lower. At the close, the Shanghai Composite Index, Shenzhen Component Index and Growth Enterprise Market Index all rose less than 1%. More than 2,800 stocks in the entire A-share market rose, with more than 110 stocks trading daily, and PEEK materials, dairy industry and humanoid robots broke out. The market turnover was 2.23 trillion yuan, which has exceeded 1 trillion yuan for 50 consecutive trading days, setting a new record for the A-share market. Analysts believe that ample liquidity and optimistic policy expectations are expected to support the stock market in the New Year. The policy expectation of "stabilizing the property market and stock market" will help boost investor confidence and protect the long-term healthy development of the A-share market. (CSI)Market information: US President Biden seeks to veto once and for all the merger of Nippon Steel (Nippon Steel) and American Steel Company (X).AI can solve partial differential equations thousands of times faster than before, and partial differential equations play an important role in engineering and science. In a recent study, scientists from Johns Hopkins University in the United States have developed a new artificial intelligence (AI) model called "Differential Mapping Operator Learning" (DIMON), which can solve complex partial differential equations on personal computers, thousands of times faster than before, and is expected to "show its talents" in the fields of aerospace, automobiles and medicine. Related papers were published in the journal Nature Computational Science published on the 9th. (Science and Technology Daily)

Walgreen, a chain drug store, is in talks to sell it to private equity fund Sycamore Partners. Walgreen's intraday gains rose to 5.99% in the short term, which triggered the suspension.The commander of Syrian democratic forces said that under the mediation of the US, Syrian rebels and Syrian democratic forces reached a ceasefire agreement in the northern city of Mambiji.Standard & Poor's: Downgrading Intel's rating to BBB, the outlook is stable. The recovery of the company's business activities is slow.

Bank for International Settlements: The biggest threat to global stability is the debt carnival of governments. The Bank for International Settlements (BIS) said that the biggest threat to world economic stability is the government's borrowing habits, and the recent changes in market sentiment should be vigilant. Claudio Borio, a senior official of BIS, said in his quarterly report that priority should be given to repairing public finances before the panic of bond investors spreads. "The global financial outlook is still very worrying," said the retiring head of the BIS monetary and economic department. "The trajectory of government debt poses the most serious threat to macroeconomic and financial stability."New york gold futures rose about 1.3% and returned to $2,720. On Tuesday (December 10th) in late new york, spot gold rose 1.27% to $2,694.10 per ounce, which continued to fluctuate upward during the day, with a trading range of $2,658.05-2,695.62. Spot silver rose 0.20% to $31.9055 per ounce. COMEX gold futures rose 1.28% to $2,720.00 per ounce, with an intraday trading range of $2,680.70-$2,721.30. COMEX silver futures rose 0.62% to $32.6450 an ounce. COMEX copper futures rose 0.31% to $4.2710/lb.General Motors said that it will give priority to the development of advanced driver assistance systems to realize fully automatic personal cars and make persistent efforts on the basis of super cruise.