Volunteers from Southwestern University of Finance and Economics tutor students at a temporary school at the Lushan Middle School in Lushan County, southwest China's Sichuan Province, April 22, 2013. A temporary school was set up here Monday by 17 volunteers from Southwestern University of Finance and Economics. A 7.0-magnitude earthquake jolted Lushan County of Ya'an City in the morning on April 20. (Xinhua/Jiang Hongjing)

Photo taken on April 22, 2013 shows a blackboard pasted with paper cards with the wishes of students at Lushan Middle School in Lushan County, southwest China's Sichuan Province. A temporary school was set up here Monday by 17 volunteers from Southwestern University of Finance and Economics. A 7.0-magnitude earthquake jolted Lushan County of Ya'an City in the morning on April 20. (Xinhua/Jiang Hongjing)

Students check lesson schedules at a temporary school set up at the Lushan Middle School in Lushan County, southwest China's Sichuan Province, April 22, 2013. A temporary school was set up here Monday by 17 volunteers from Southwestern University of Finance and Economics. A 7.0-magnitude earthquake jolted Lushan County of Ya'an City in the morning on April 20. (Xinhua/Jiang Hongjing)

 Foreign students from Southwestern University of Finance and Economics teach students English at a temporary school at the Lushan Middle School in Lushan County, southwest China's Sichuan Province, April 22, 2013. A temporary school was set up here Monday by 17 volunteers from Southwestern University of Finance and Economics. A 7.0-magnitude earthquake jolted Lushan County of Ya'an City in the morning on April 20. (Xinhua/Jiang Hongjing)