First Smart China Expo attracts visitors in Chongqing
Source: Xinhua| 2018-08-24 22:10:49|Editor: ZX
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Visitors look at an exhibit during the first Smart China Expo in southwest China's Chongqing, Aug. 24, 2018. The first Smart China Expo is held here from Thursday to Saturday. (Xinhua/Wang Quanchao)
