单项选择题
A.地卡因B.利多卡因C.美索卡因D.爱康宁E.苯佐卡因
A.苯佐卡因B.奴弗卡因C.可卡因D.美索卡因E.邦妥卡因
A.CI2CHCF2OCH3B.CIBrCHCF2OCH3C.BrCHCF2OCH3D.CIFCHCF2OCH3E.F2CHCF2OCH3
A.F3C-CHCI2B.CF3-CHBr2C.CF2-CH2CID.CF3-CHBrCIE.CF3-CH2Br
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