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Tourists walk in Dahuabei forest area in Bayan Nur, north China's Inner Mongolia Autonomous Region, Oct. 3, 2017. (Xinhua/Zhi Maosheng)

Tourists walk in Dahuabei forest area in Bayan Nur, north China's Inner Mongolia Autonomous Region, Oct. 3, 2017. (Xinhua/Zhi Maosheng)