Chinese President Xi Jinping (C), who is also general secretary of the Communist Party of China (CPC) Central Committee and chairman of the Central Military Commission (CMC), watches paraplegic patients singing accompanied by Erhu, a Chinese two-stringed musical instrument, at the city's paraplegic rehabilitation center in Tangshan, north China's Hebei Province, July 28, 2016. (Xinhua/Xie Huanchi)