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                题目要求

                酸雨对水生植物的危害从中午到现在有很多很大,特别严重时还会危害人类健康,它人的主要成分是()

                A.硫酸和盐酸

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                C.高氯酸和♀硝酸

                D.硝酸身体在空中划过一道弧线和硫酸

                  

                发布时间:2014-08-30 08:44:15
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