Wang Huning (R front), a member of the Standing Committee of the Political Bureau of the Communist Party of China (CPC) Central Committee and also a member of the Secretariat of the CPC Central Committee, shakes hands with scientists before a meeting held to mark the 60th anniversary of the founding of the China Association for Science and Technology (CAST) in Beijing, capital of China, May 30, 2018. [Photo/Xinhua]