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Chinese President Xi Jinping welcomes UN Secretary-General Ban Ki-moon before the Group of 20 (G20) summit in Hangzhou, capital of east China's Zhejiang Province, Sept. 4, 2016. (Xinhua/Ma Zhancheng)
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Chinese President Xi Jinping welcomes UN Secretary-General Ban Ki-moon before the Group of 20 (G20) summit in Hangzhou, capital of east China's Zhejiang Province, Sept. 4, 2016. (Xinhua/Ma Zhancheng)
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