(C), general secretary of the Communist Party of China (CPC) Central Committee, who is also Chinese president and chairman of the Central Military Commission, leads other members of the Standing Committee of the Political Bureau of the CPC Central Committee (3rd R), Li Zhanshu (3rd L), Wang Yang (2nd R), Wang Huning (2nd L), Zhao Leji (1st R) and Han Zheng to review the oath of the CPC when visiting the site where the first CPC National Congress was held in 1921, in Shanghai, east China, Oct. 31, 2017. (Xinhua/Lan Hongguang)