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A reader is seen at the 24-hour self-service library in Hohhot, capital of north China's Inner Mongolia Autonomous Region, Jan. 18, 2018. (Xinhua/Peng Yuan)
 
 
A reader is seen at the 24-hour self-service library in Hohhot, capital of north China's Inner Mongolia Autonomous Region, Jan. 18, 2018. (Xinhua/Peng Yuan)