Li Shan, a senior student, helps her classmate Yangqin, who is napping at her desk, to cool down by waving a fan, in Mingshan Middle School in earthquake-hit Ya'an, Southwest China's Sichuan province, May 13, 2013. They are preparing for the annual National College Entrance Exam in the simmering heat of the classroom. [Photo by Zhu Xingxin/Asianewsphoto]