Students participate in an earthquake response drill at a special education school in Xingtai, North China’s Hebei province, March 28, 2011. Chinese students in primary and junior high schools took part in drills during the annual security education day, which is the last Monday in March, to enhance their ability to stay safe and protected and learn how to avoid accidental injuries. [Photo/Xinhua]

A student participates in an evacuation exercise at an elementary school in North China’s Tianjin municipality on national security education day, March 28, 2011. [Photo/Xinhua]