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Data released by the Ministry of Environmental Protection on Thursday shows that Beijing's air quality improved sharply in November, with the average PM2.5 concentration count cut by 54 percent to 46 micrograms per cubic meter, almost the summertime level in the capital.

Declining issues outnumbered advancing ones on the NYSE by a 1.28-to-1 ratio; on Nasdaq, a 1.65-to-1 ratio favored decliners.

Dai Peng, chief executive officer of iHuman, said the company will continue to focus on the integration of its online and offline business.

Dai Bin, president of the China Tourism Academy, said at a conference on Feb 6 in Beijing that group or organized tours were reduced or even canceled amid the epidemic outbreak.

Dai Bin, App Annie's director of China affairs, said: "The downloads of Chinese apps in the Belt and Road economies accounted for 55 percent of the total overseas market in 2017, compared with 47 percent in 2015."