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An assistant arranges books at the 24-hour Chengming Bookstore in Shijiazhuang, capital of north China's Hebei Province, Dec. 18, 2017. (Xinhua/Zhang Shuo)
An assistant arranges books at the 24-hour Chengming Bookstore in Shijiazhuang, capital of north China's Hebei Province, Dec. 18, 2017. (Xinhua/Zhang Shuo)