Candidates walk into an exam site of the national college entrance exam at Jinhong Middle School in Feidong county, east China’s Anhui province, June 7, 2016. China’s national college entrance exam started from June 7. [Photo/Xinhua]

Parents wait outside an exam site of the national college entrance exam at the Mingzhu School of the Middle School affiliated to the Northeast Normal University in Changchun, capital of northeast China’s Jilin province, June 7, 2016. China’s national college entrance exam started from June 7.[Photo/Xinhua]

Candidates queue to enter an exam site of the national college entrance exam at the No. 3 Middle School in Nong’an county, northeast China’s Jilin province, June 7, 2016. China’s national college entrance exam started from Tuesday.[Photo/Xinhua]

A candidate claps hands with his teacher before walking into an exam site of the national college entrance exam at Xuhui Middle School in Shanghai, east China, June 7, 2016. China’s national college entrance exam started from June 7.[Photo/Xinhua]

A candidate reviews a book outside an exam site of the national college entrance exam at Xuhui Middle School in Shanghai, east China, June 7, 2016. China’s national college entrance exam started from June 7. [Photo/Xinhua]