A student waves on a special train to test sites for the National College Entrance Exam, or gaokao, from Oroqen Autonomous Banner, the Inner Mongolia autonomous region, June 5, 2017. The train is carrying around 500 students from Dayangshu township, where there are no test sites, to Alihe township, a 135-kilometer trip. Started operating in 2003, the train, with the ticket price at only 12.5 yuan, has offered convenience for more than 20,000 students, especially those from low-income families. [Photo/VCG]