Children guided by a policewoman and a teacher escape from a building during a drilling in Nanjing experimental kindergarten in Nanjing, capital of east China's Jiangsu Province, May 10, 2010. The drilling was held Monday in Nanjing, aiming at teaching children to escape from buildings and to protect themselves when earthquake happens. [Xinhua]

Children guided by teachers escape from a building during a drilling in Nanjing experimental kindergarten in Nanjing, capital of east China's Jiangsu Province, May 10, 2010. The drilling was held Monday in Nanjing, aiming at teaching children to escape from buildings and to protect themselves when earthquake happens. [Xinhua]