题目
第8题
A.CH3Br >CH3Cl> CH4> CH3I
B.CH3F >CH3Cl> CH3I> CH4
C.CH4> CH3I > CH3Cl > CH3Br
D.CH3I > CH4> CH3Cl > CH3F
第9题
A.CH3F >CH3Cl> CH4> CH3I
B.CH3F >CH3Cl> CH3I> CH4
C.CH4> CH3I > CH3Cl > CH3F
D.CH3I > CH4> CH3Cl > CH3F
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