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Photo taken on May 26, 2018 shows a billboard of 皇冠体育app International Big Data Industry Expo in Guiyang, capital of Southwest 皇冠体育app's Guizhou province. The four-day expo opened here on Saturday, attracting over 40,000 participants from nearly 30 countries. [Photo by Ou Dongqu/Xinhua] |
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People visit the International Big Data Industry Expo in Guiyang. The four-day expo opened on May 26, attracting over 40,000 participants from nearly 30 countries. [Photo by Ou Dongqu/Xinhua] |
