Students mourn for the earthquake victims at a primary school in Yushu Tibetan Autonomous Prefecture, northwest China's Qinghai Province, April 14, 2011. Some 300 pupils and teachers took part in the commemoration here on Thursday, the first anniversary of the Yushu earthquake. A 7.1-magnitude quake that hit Yushu on April 14 of 2010 left more than 2,200 people dead. [Xinhua/Zhang Hongxiang]