Xi: "One country, two systems" the best arrangement for HK

Liu Yunshan (2nd R, front), a member of the Standing Committee of the Political Bureau of the Communist Party of China (CPC) Central Committee, visits an exhibition profiling the achievements made in Hong Kong since its return to the motherland in 1997 in Beijing, capital of China, June 26, 2017. (Xinhua/Rao Aimin)