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It is reported that Canada is considering imposing export taxes on commodities such as uranium and oil to counter Trump's tariff threat. Canada is studying the imposition of export taxes on major commodities exported to the United States, including uranium, oil and potash, in the case that Trump fulfills the comprehensive tariff threat. Officials familiar with the internal discussions of Canadian Prime Minister Trudeau's government said that the export tax would be Canada's last resort. According to people familiar with the matter, retaliatory tariffs on goods made in the United States and export controls on some Canadian products are more likely to come first. However, these officials said that if Trump decides to launch a full-scale trade war, the commodity export tax is a practical option, which will push up the costs of American consumers, farmers and enterprises. They said that the Trudeau government may also propose to expand its export control power in the latest report on the country's financial and economic situation scheduled to be released on Monday. It is reported that Canada is currently the largest external oil supplier in the United States. Some refineries rely on cheaper Canadian heavy crude oil, and there are few other options. The impact of rising costs is particularly severe in the Midwest of the United States, where nearly half of the crude oil used by fuel producers to produce gasoline and diesel comes from Canada.Lotus chose Amazon Cloud Technology as the preferred cloud service provider. On December 13th, according to Amazon Cloud Technology, Lotus Technology chose Amazon Cloud Technology as the preferred cloud service provider.Centaline Property: The price of second-hand houses in Hong Kong dropped by 0.6% on a weekly basis. Centaline Property said on its website that in the week from December 2 to 8, the leading index of Central Plains cities, which measures the price of second-hand houses in Hong Kong, fell by 0.6% to 137.59.

Six residential plots in Wuhan received 5.457 billion yuan: OCT received 2.42 billion yuan from Yangchun Lake. According to the monitoring of the China Central Finger Research Institute, on December 13th, Wuhan successfully sold six residential plots, including Hanyang District, Donghu High-tech Zone, Hongshan District, huangpi district District and Qingshan District. The total land area of 6 plots is 214,964 ㎡, the total planned construction area is 726,285.4 ㎡, and the total starting price is 5.457 billion yuan. In the end, all six plots were sold at the reserve price, with a total income of 5.457 billion yuan, including Yangchun Lake in Hongshan District, OCT, and Hanyang District, Wuhan Huijing Real Estate, a private enterprise.-40.8℃！ Bayinbuluke, Xinjiang refreshed the lowest temperature in the country in winter. With the strong invasion of cold air, the temperature in many places in Xinjiang hit a new low. On December 12th, according to the live ranking of the lowest temperature by the Central Meteorological Observatory, the lowest temperature in Bayinbuluke reached -40.8℃ from 15: 00 on December 11th to 14: 00 on December 12th, making it the top of the national lowest temperature list in this period, 5.4℃ lower than the Tuli River in Inner Mongolia, which ranked second, and becoming the first national weather station in China to fall below -40℃ after winter. (Xinjiang Daily)On the 13th, SSE 50 index futures fell by 2.58%, and the latest main contract positions changed as follows. According to the exchange data, as of December 13th, SSE 50 index futures closed at 2,412, up or down by -2.58%, with a turnover of 53,000 lots. The position data showed that the top 20 seats were clear, and the difference position was 7,398 lots. The total number of contracts of SSE 50 index futures was 91,500 lots, an increase of 25,700 lots over the previous day. The first 20 seats in the contract held 88,200 lots, an increase of 2,257 lots over the previous day. The short positions in the top 20 seats of the contract were 113,700 lots, an increase of 1,701 lots over the previous day. (Sina Futures)

According to TASS news agency, Turkish President Erdogan said that if national security is threatened, Turkey will take action against Syrian terrorists.AI glasses ushered in the limelight, and Google reached a cooperation with domestic manufacturers. According to the news, on December 13, at the Android XR conference, Google reached a strategic cooperation with domestic consumer-grade AR glasses manufacturer XREAL to jointly build the Android XR ecosystem. According to media reports, OPPO, vivo, Huawei, Tencent and ByteDance are all evaluating the AI glasses project. In addition, a number of listed companies said on the investor question and answer platform that they have corresponding technology or product reserves in AI glasses. Huaxin Securities Research Report pointed out that AI glasses have become a new outlet in the smart wear market, or lead the next generation of terminal revolution. AI glasses not only have the effect of virtual vision enhancement, but also realize real-time analysis of user behavior and environment by integrating artificial intelligence algorithms, providing more accurate and personalized services. AI glasses also improve comfort and prolong wearing time in design and portability. At the same time, it provides a more natural and convenient interactive experience innovation through various sensing technologies. With the gradual reduction of costs, AI glasses are expected to be further widely used. According to the report of Wellsenn XR, it is estimated that after 2030, the AI+AR smart glasses industry will enter a period of rapid development; By 2035, AI+AR smart glasses will eventually replace traditional smart glasses, and the global sales of AI+AR smart glasses will reach 1.4 billion units, which is equivalent to the size of smart phones and will become the next generation general computing platform and terminal. (Securities Times)Nigeria: About 130,000 members of Boko Haram have surrendered in the past five months. Christopher Moussa, chief of staff of Nigeria's defense, said on the 12th that nearly 130,000 members of the extremist organization Boko Haram have surrendered in the past five months. Moussa, attending the African Security Watch Conference in Doha, Qatar, said that from July 10th to December 9th, a total of 30,426 Boko Haram militants, 36,774 women and 62,265 children members of the organization surrendered. (Xinhua News Agency)