Boao Forum for Asia 2011 under preparation

Photo taken on April 7, 2011 shows the exterior view of the conference hall of the Boao Forum for Asia (BFA) 2011 in Boao, a resort township in south China's Hainan Province, April 7, 2011. The annual BFA event will be held here from April 14 to 16, 2011. [Photo/Xinhua]