Chinese Vice Premier Wang Qishan delivers a speech during a welcoming reception held by United States friendly groups at Ritz Carlton Hotel in Washington D.C., capital of the United States, on July 28, 2009. [Xinhua]

Chinese State Councilor Dai Bingguo delivers a speech during a welcoming reception held by United States friendly groups at Ritz Carlton Hotel in Washington D.C., capital of the United States, on July 28, 2009. [Xinhua]