Grade 3 high school students attend class despite the hot weather in the quake-hit Ningqiang County, Shaanxi Province, northwest China, May 28, 2008. Some dormitory tents and classroom tents were set up on the playground of the No. 1 Middle School of Ningqiang for more than 1100 grade 3 students in order to ensure their preparation for the upcoming national college entrance examinations. [Xinhua]