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Chinese Vice Premier Liu Yandong (C front) launches the 2017 National Vocational Students Skills Competition in north China's Tianjin Municipality, May 8, 2017. (Xinhua/Cao Can)
Chinese Vice Premier Liu Yandong (C front) launches the 2017 National Vocational Students Skills Competition in north China's Tianjin Municipality, May 8, 2017. (Xinhua/Cao Can)