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Da Zhigang, a researcher of northeast Asian studies at the Heilongjiang Provincial Academy of Social Sciences, said Singapore was probably chosen for a number of reasons, including its "cautious" and "neutral" stance on the Korean Peninsula issue.
Data on patent families provide a broad unduplicated measure of global inventions. Based on the data, inventors in China accounted for about half (49 percent) of such patent families in 2018. Japan ranked No 2 at 17.5 percent, and the US accounted for only 6.8 percent.
Dang Junwu, deputy director of the China Research Center on Aging, said Beijing has in recent years become a hyperaging society, one that has a significant proportion of people age 80 or older.
Dates: Dec 1-5, 1975
David Qian, CEO of Ecovacs Robotics, said the COVID-19 outbreak has brought more growth points than challenges to the service robotics market in the long run.
来源：资阳报