BEIJING, May 30, 2016 -- Chinese President Xi Jinping (3rd L, front), Premier Li Keqiang (3rd R, front) and senior leaders Zhang Dejiang (2nd L, front), Yu Zhengsheng (2nd R, front), Liu Yunshan (1st L, front) and Wang Qishan (1st R, front) attend an event conflating the national conference on science and technology, the biennial conference of the country's two top think tanks, the Chinese Academy of Sciences and Chinese Academy of Engineering, and the national congress of the China Association for Science and Technology, in Beijing, capital of China, May 30, 2016. (Xinhua/Pang Xinglei)