Galsang Lhamo, a junior high school student in Nagqu Prefecture of the Tibet autonomous region, poses before participating in a dancing performance marking the 60th anniversary of Tibet's peaceful liberation, on July 21, 2011. Li Jianguo, deputy chief of a central government delegation sent to attend a series of celebration activities, went to Nagqu Prefecture in the northern part of Tibet on July 21. Nagqu extends 430,000 sq km in northern part of Tibet, with a population of 450,000. [Photo by Zhao Huanxin/chinadaily.com.cn]