Workers clean the Oriental Pearl Tower in Shanghai, Oct 28, 2013. [Photo/icpress.cn]

College students wrap themselves in blankets while taking a break from studying in preparation for the 2014 graduate school admission examination in Taiyuan, Shanxi province, Oct 29, 2013. The annual exam, which gives many college students another chance to study in a better school, is usually scheduled in January. [Photo by Liu Jiang/Asianewsphoto]