People cover their mouths and noses with handkerchiefs during a fire evacuation drill at Qipu Road Market in Shanghai, July 12, 2012. The Qipu Road Market is the largest clothing wholesale market in Shanghai and the drill aims to help staff members of the market gain experiences of emergency evacuation. [Photo/Xinhua]

Staff members of Qipu Road Market rappel down the building that "catches fire" during a fire evacuation drill at Qipulu Market in Shanghai, July 12, 2012. [Photo/Xinhua]