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At current levels, total populations will decline over time. An average of slightly more than two babies per woman is needed to replace the current population because not all children survive to adulthood, not all women marry, not all who marry have children, and there are slightly more males born than females, demographers say.

Asian buying accounted for a third of Christie's .6 billion global sales in 2017, up 39 percent from a year earlier, according to Bloomberg.com. About half of Asian clients bought non-Asian art in 2017, Christie's said.

At a much-anticipated event held in Shanghai in early May, Cambricon Technologies Corp Ltd, a startup that specializes in AI processors, unveiled China's first cloud AI chip－the MLU 100. The chip outperforms traditional general purpose processors and can better support AI-powered applications.

At 5 pm Monday, Mekkhala, this year's sixth typhoon, had strengthened to a severe tropical storm and was centered over the sea some 390 km south of Xiamen, East China's Fujian province, packing winds of up to 28 meters per second, the National Meteorological Center (NMC) said in a statement.

At least five officers at Mudanjiang prison favored the money transfer and illegal lottery purchase by providing their bank accounts to Zhang, but the prison did not explain why Zhang could use mobile phones in jail, which is banned by law.