BEIJING, June 3, 2016 (Xinhua) -- Chinese PresidentXi Jinping(3rd L) visits an exhibition on China's science and technology achievements during the 12th Five-Year Plan period (2011-2015) in Beijing, capital of China, June 3, 2016. (Xinhua/Ju Peng) BEIJING, June 3 (Xinhua) -- Chinese...