Elsewhere on day 15 of the Games, China's world number one Zhang Yining won back-to-back table tennis golds, after defeating team-mate Wang Nan to hand the hosts a clean sweep of the medals in the women's singles.

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The quality of homes would likely be better, " said Chen Yining, a Shanghai native who is looking to invest in a home in the U.S. "Unless, of course, I get favorable mortgage conditions, or if I can pay in yuan.

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Another gold medal was added Friday when Wang Nan and Zhang Yining converted the second of five match points to defeat the South Korean penhold pair Seok Eun-mi and Lee Eun-sil 11-9 11-7 11-6 11-6 in the women's table tennis doubles.

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