Buildings are seen in the distance in Beijing, capital of China, Dec. 2, 2015, after the lingering thick smog dispersed overnight. (Photo: Xinhua/Luo Xiaoguang)
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Buildings are seen in the distance in Beijing, capital of China, Dec. 2, 2015, after the lingering thick smog dispersed overnight. (Photo: Xinhua/Luo Xiaoguang)
