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Vice President Joe Biden, center, Chinese Vice President Xi Jinping, left, and Los Angeles Mayor Antonio Villaraigosa, right, watch a dance performance during a visit to International Studies Learning Center Friday, Feb. 17, 2012 in South Gate, Calif. Chinese Vice President Xi Jinping began the last day of his U.S. visit Friday by urging closer ties and arguing that Americans benefit from their trade relationship with China. (AP Photo/Los Angeles Times, Jay L. Clendenin, Pool)

Vice President Joe Biden, center, Chinese Vice President Xi Jinping, left, and Los Angeles Mayor Antonio Villaraigosa, right, watch a dance performance during a visit to International Studies Learning Center Friday, Feb. 17, 2012 in South Gate, Calif. Chinese Vice President Xi Jinping began the last day of his U.S. visit Friday by urging closer ties and arguing that Americans benefit from their trade relationship with China. (AP Photo/Los Angeles Times, Jay L. Clendenin, Pool)

China's Xi sells U.S. trade elixir, personal chemistry

China's leader-in-waiting Xi Jinping on Friday swiped away fears that his country's economic growth could stumble, and turned to courting American companies, film-makers and governors hungry for a slice of that growth on the final day of his U.S. visit.