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2009年末,以哥本哈根会议为中心的节能减排话题成为世界关注的热点,与此同时郑州市也在绿色道路的行进中走入全国前列。首先是郑州快速公交将成为国内第二家进行“碳交易”的线
At the end of 2009, the topic of energy conservation and emission reduction with the Copenhagen conference as the center has become a hot topic of concern in the world. At the same time, Zhengzhou is also at the forefront of the progress of the green road. First of all, Zhengzhou Rapid Transit will become the second domestic “carbon trading” line