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In this aerial photo taken on April 16, 2019, students attend an outdoor drawing session amid rapeseed flowers in Dulangkou Township of Chiping County, east China's Shandong Province. (Xinhua/Zhao Yuguo)
In this aerial photo taken on April 16, 2019, students attend an outdoor drawing session amid rapeseed flowers in Dulangkou Township of Chiping County, east China's Shandong Province. (Xinhua/Zhao Yuguo)