"Gaokao" candidates review before taking the national college entrance exam at Hongqi High School in Fuyang, east China's Anhui Province, June 7, 2014. The exam, known as the "gaokao", began on Saturday. A total of 9.39 million people have registered for the exam this year to vie for 6.98 million vacancies in universities and colleges. (Xinhua/Lu Qijian)