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 Two visitors drive a jet ski ahead of tides in the Qiantang River in Hangzhou, East China's Zhejiang province, Sept 15, 2011. [Photo/Xinhua] 
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 Two visitors drive a jet ski ahead of tides in the Qiantang River in Hangzhou, East China's Zhejiang province, Sept 15, 2011. [Photo/Xinhua] 
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