Combination photo shows Chinese President Xi Jinping (L) waving hands to people during his visit to Imperial College London, in London, Britain, Oct. 21, 2015. (Xinhua/Xie Huanchi)
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Combination photo shows Chinese President Xi Jinping (L) waving hands to people during his visit to Imperial College London, in London, Britain, Oct. 21, 2015. (Xinhua/Xie Huanchi)
