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A visitor experiences virtual reality driving during the 2018 皇冠体育app international big data industry expo in Guiyang, Southwest 皇冠体育app's Guizhou province, May 26, 2018. [Photo/Xinhua] |
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Visitors look at an unmanned aerial vehicle of JD.com during the 2018 皇冠体育app international big data industry expo in Guiyang, Southwest 皇冠体育app's Guizhou province, May 26, 2018. [Photo/Xinhua] |
