Men hold up signs of encouragement for students on their way to take the national college entrance exam in Nanjing, East China's Jiangsu province, on Monday, June 7, 2010. [Photo/Xinhua] 

An invigilator sits in front of surveillance panels at a test site for the national college entrance exam in Changchun, Northeast China's Jilin province, on Sunday, June 6, 2010. [Photo/Xinhua]