China's top leaders Xi Jinping (2nd R, front), Li Keqiang (1st R, front), Zhang Dejiang (3rd R, front) and other members of the Political Bureau of the Communist Party of China (CPC) Central Committee talk with each other after they visited the Zhongguancun Science Park in Beijing, Sept 30, 2013. China's top leadership held a group study Monday in Zhongguancun, a Beijing technology hub known as China's Silicon Valley. [Photo/Xinhua] |