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SHANGHAI, Oct. 27, 2012 (Xinhua) -- Yang Liwei (R front), deputy director of China Manned Space Engineering Office watches the re-entry capsule of Shenzhou-4 spaceship during an exhibition of China's manned space program in Shanghai, east China, Oct. 27, 2012. The exhibition which kicked off Saturday shows the history of China's manned space program's development. (Xinhua/Pei Xin)