Students at the No 2 Middle School of Hengshui in Hebei province exercise to relieve pressure of gaokao, the national college entrance exam, June 6, 2017.(Photo/Xinhua)
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Students at the No 2 Middle School of Hengshui in Hebei province exercise to relieve pressure of gaokao, the national college entrance exam, June 6, 2017.(Photo/Xinhua)