YAN'AN CHINA APRIL 11 More Than 1700 students of Yichuan Middle School take an outdoor exam at the playground on April 11 2015 in Yan'an Shaanxi...
{"Image ImageDescription": "YAN'AN, CHINA - APRIL 11:  (CHINA OUT) More Than 1,700 students of Yichuan Middle School take an outdoor exam at the playground on April 11, 2015 in Yan'an, Shaanxi province of China.   (Photo by Visual China Group via Getty Images/Visual China Group via Getty Images)", "Image Copyright": "2015 Visual China Group"}