Pupils watch a smartphone in a tent school in Rongxar Township of Tingri County, southwest China's Tibet Autonomous Region, May 4, 2015. Pupils of Rongxar Township Primary School have been settled in the tent school and restarted class after Nepal's April 25 earthquake. (Xinhua/Liu Hongming)

Pupils take part in an earthquake drilling in a tent school in Rongxar Township of Tingri County, southwest China's Tibet Autonomous Region, May 4, 2015. Pupils of Rongxar Township Primary School have been settled in the tent school and restarted class after Nepal's April 25 earthquake. (Xinhua/Liu Hongming)

Pupils pose for photos in a tent school in Rongxar Township of Tingri County, southwest China's Tibet Autonomous Region, May 4, 2015. Pupils of Rongxar Township Primary School have been settled in the tent school and restarted class after Nepal's April 25 earthquake. (Xinhua/Liu Hongming)

Pupils read books in a tent school in Rongxar Township of Tingri County, southwest China's Tibet Autonomous Region, May 4, 2015. Pupils of Rongxar Township Primary School have been settled in the tent school and restarted class after Nepal's April 25 earthquake. (Xinhua/Liu Hongming)

A pupil attends class in a tent school in Rongxar Township of Tingri County, southwest China's Tibet Autonomous Region, May 4, 2015. Pupils of Rongxar Township Primary School have been settled in the tent school and restarted class after Nepal's April 25 earthquake. (Xinhua/Liu Hongming)

Pupils attend class in a tent school in Rongxar Township of Tingri County, southwest China's Tibet Autonomous Region, May 4, 2015. Pupils of Rongxar Township Primary School have been settled in the tent school and restarted class after Nepal's April 25 earthquake. (Xinhua/Liu Hongming)

Editor: Lucia Su