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Direct selling to overseas consumers has never been easier for Chinese mainland companies, and has become a key growth driver for many businesses, with e-commerce offering an easy platform to enable international expansion.

Director of the Centers for Disease Control and Prevention Robert Redfield "will be teleworking for the next two weeks" after a "low-risk exposure" on Wednesday to a person at the White House who has the disease, the Washington Post reported on Saturday, citing a spokesman. Redfield is 68 years old.

Detection of entangled photons provides a key for coding and decoding secret messages, and China has used it to develop the Micius satellite, launched in 2016.The satellite has successfully transmitted unbreakable information to ground stations 1,200 kilometers away, establishing a steppingstone for an ultra-secure communication network.

Director, PLA General Armaments Department

Digital technologies also helped cut delays at airports. The on-time performance rate of all civil flights amounted to 81.65 percent last year as the number of flights continued to rise.