Lidocaine比procaine作用时间长的主要原因是

局麻药利多卡因比普鲁卡因胺作用时间长的主要原因是() A: Procaine有芳香第一胺结构 B: Procaine有酯基 C: Lidocaine有酰胺结构 D: Lidocaine的中间部分较Procaine短 E: 酰胺键比酯键不易水解

Among the<br/>following local anesthetics, which one can be used to treat<br/>ventricular arrhythmias? () A: Bupivacaine B: Lidocaine C: Tetracaine D: Procaine E: Ropivacaine

【单选题】(3分) Penicillin is a group of antibiotics which include ________, Penicillin V, procaine penicillin and benzathine penicillin. A. Penicillin D B. Penicillin G C. Penicillin F D. Penicillin E