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Beijing will create a database for children's eye health, a move that will help schools and doctors to detect problems and give suggestions to parents, said Xi Shuyan, director of the division of elderly, maternal and child health of the Beijing Municipal Health Commission.

Beijing on Friday slammed some politicians in Washington for fabricating rumors and stirring up ideological opposition by linking Chinese technology company Huawei with the Chinese government.

Beijing-based Baidu had not responded by press time.

Before 2020 ends, Canada will receive an initial batch of up to 249,000 doses, Trudeau said on Parliament Hill. "This will move us forward on our whole timeline of vaccine rollout."

Beijing's Zhongguancun tech community has became the top destination for the brightest tech talents around the world, due to its favorable climate for early stage funding, good performance in startup output and the city's affordable cost of living, revealed the Top Tech cities in the World 2017 report.