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A student experiences an interactive exhibit in a mobile science museum in Shuangluan District of Chengde, north China's Hebei Province, Oct. 10, 2017. (Xinhua/Wang Liqun)
A student experiences an interactive exhibit in a mobile science museum in Shuangluan District of Chengde, north China's Hebei Province, Oct. 10, 2017. (Xinhua/Wang Liqun)