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【单选题】
对于大气污染的类型,叙述错误的是
A.
煤烟型污染主要源于煤的燃烧
B.
石油型污染主要源于机动车尾气
C.
煤烟型污染主要产生的污染物有NOx和HC等
D.
石油型污染主要产生的污染物有NOx和HC等
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【单选题】The passage suggests that a large decrease in the amount of CO2 in the atmosphere would result in ______.
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