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所属栏目：走近科学
所属频道：CCTV-10科教
年份：2012
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简介：地球是人类的美丽家园，它正在经历一场前所未有的气候变迁，这仅仅是地球发了一场低烧，而危机才刚刚开始。收起
天问大气 [走近科学] 20120313
《走近科学》 20120312 危机开始
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