Campus security members take part in an anti-riot drill in Gushan Middle School in Weihai, east China's Shandong Province, Dec. 2, 2016. (Xinhua/Guo Xulei)
Campus security members take part in an anti-riot drill in Gushan Middle School in Weihai, east China's Shandong Province, Dec. 2, 2016. (Xinhua/Guo Xulei)