选择题:2013年,我省兰州市城区环境空气质量优良天数达到299天,优良率达到了81.92%。历史性地退出了全国空气质量十大污染城市行列。现行空气质量日报中,未计入空气

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题目内容:

2013年,我省兰州市城区环境空气质量优良天数达到299天,优良率达到了81.92%。历史性地退出了全国空气质量十大污染城市行列。现行空气质量日报中,未计入空气污染指数项目的是

A.SO2

B.NO2

C.CO2

D.可吸入颗粒

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