皮皮学，免费搜题
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【单选题】
能使近地面气温增高的原因有( )1臭氧对紫外线的强烈吸收;2尘埃的反射和散射作用;3大气逆辐射作用;4水汽和二氧化碳吸收地面辐射
A.
①②
B.
③④
C.
①③
D.
②④
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