BEIJING, May 22, 2016 (Xinhua) -- A train is going on the Nagqu section of Qinghai-Tibet railway, southwest China's Tibet Autonomous Region, Sept. 28, 2014. Qinghai-Tibet railway, free education, basic medical and health care and other social welfare made great improvement to the people's living level in the region after its peaceful liberation in 1951. The average life expectancy was 68.2 years in 2013, up from 35.5 years before its peaceful liberation. (Xinhua/Wang Song)
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