A.(CH3)3CCH2Br B.(CH3)3CCl C.CH3CH2OH D.CH2=CH2
A.碳負(fù)離子 B.p-π C.π-π D.碳正離子
A.(CH3)3C-CH2-Br B.CH3Cl C.(CH3)3C-Br D.(CH3)3CH2-CHBrCH3