China International Big Data Industry Expo 2019 opens in Guiyang, southwest China's Guizhou Province, May 26, 2019. The four-day expo will be attended by 448 enterprises from 59 countries and regions, according to the organizing committee. (Xinhua/Ou Dongqu)
China Int'l big data expo opens
Source: Xinhua| 2019-05-26 22:56:36|Editor: Liangyu
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