摘要: 从溴乙烷制取1.2-二溴乙烷.下列转化方案中最好的是 A.CH3CH2Br CH3CH2OHCH2=CH2 CH2BrCH2Br B.CH3CH2Br CH2BrCH2Br C.CH3CH2Br CH2=CH2 CH2BrCH3 CH2BrCH2Br D.CH3CH2Br CH2=CH2 CH2BrCH2Br
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