Maotanchang High School students in Maotanchang township, Liu'an city of East China's Anhui province heading to the national college entrance exam (or gaokao) sites in urban areas of the city as their parents and locals wave goodbye and wish them luck, June 5, 2016. The school has earned a reputation as a "gaokao mill" having produced a large number of students to pass the national exam, known as gaokao.[Photo/IC]