Photo taken on May 26, 2018 shows a billboard of China International Big Data Industry Expo in Guiyang, capital of southwest China's Guizhou Province. The four-day expo opened here on Saturday, attracting over 40,000 participants from nearly 30 countries. (Xinhua/Ou Dongqu)
China International Big Data Industry Expo opens
Source: Xinhua| 2018-05-26 18:54:49|Editor: Liangyu
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