Xi Jinping, who is also the general secretary of the Communist Party of China (CPC) Central Committee and chairman of the Central Military Commission, shakes hands with shipboard helicopter pilots on vessel Jinggangshan, in Sanya, south China's Hainan Province, April 9, 2013. Xi visits the People's Liberation Army Navy troops stationed in Sanya after attending the Boao Forum for Asia Annual Conference 2013. [Photo/Xinhua]