Chinese Vice Premier Wang Qishan (6th L, Front), State Councilor Dai Bingguo (5th L, Front), U.S. Secretary of State Hillary Clinton (5th R, Front), U.S. Treasury Secretary Timothy Geithner (4th R, Front) and other officials pose for a group photograph before the opening ceremony of the China-U.S. Strategic and Economic Dialogue (S&ED) in Washington, the United States, July 27, 2009. The China-U.S. Strategic and Economic Dialogue (S&ED), the first of its kind between the world's biggest developing country and biggest developed country, opened here on Monday. [Xinhua]