"Gaokao" candidates review for the coming national college entrance exam on a corridorat Nanchang No. 2 High School in Nanchang, east China's Jiangxi Province, at night of June 4, 2014. As the annual national college entrance exam, known as "gaokao" approaches, candidates seize the last minute to prepare for the exam. The exam, which will be held this weekend, attracted nearly 9.4 million participants this year.(Xinhua/Zhou Mi)