11.哌替啶是(      )

A.嗎啡類鎮(zhèn)痛藥                                               B.解熱鎮(zhèn)痛藥      

C.抗心律失常藥                                               D.抗高血壓藥

12.頭孢菌素類抑制細(xì)菌的(      )

A.胞漿膜通透性                                               B.細(xì)胞壁合成      

C.核酸合成                                                      D.蛋白質(zhì)合成

13.鏈霉素抑制細(xì)菌的(      )

A.細(xì)胞壁合成                                                  B.蛋白質(zhì)合成      

C.葉酸代謝                                                      D.DNA合成

14.異煙肼有效的是(      )

A.綠膿桿菌                                                      B.破傷風(fēng)桿菌      

C.結(jié)核桿菌                                                      D.大腸桿菌

15.氟哌酸（諾氟沙星）抑制細(xì)菌的(      )

A.DNA合成                                                     B.蛋白質(zhì)合成

C.RNA合成                                                     D.四氫葉酸合成

16.鏈霉素的主要不良反應(yīng)之一是(      )

A.白細(xì)胞減少                                                  B.肝功能損傷

C.紅細(xì)胞減少                                                  D.腎毒性

17.氯霉素的主要不良反應(yīng)是(      )

A.耳毒性                                                         B.心力衰竭  

C.心律失常                                                      D.骨髓抑制

18.氨基苷類抗生素中，抗結(jié)核作用最強(qiáng)的是(      )

A.慶大霉素                                                      B.鏈霉素      

C.卡那霉素                                                      D.新霉素

19.青霉素有效的是(      )

A.病毒                                                             B.支原體

C.衣原體                                                         D.革蘭陽性厭氧菌

20.阿司匹林抑制(      )

A.DNA回旋酶                                                 B.二氫葉酸合成酶

C.前列腺素合成酶                                           D.Na⁺,K⁺-ATP酶

21.強(qiáng)心苷抑制(      )

A.二氫葉酸還原酶                                           B.二氫葉酸合成酶

C.前列腺素合成酶                                           D.Na⁺,K⁺-ATP酶

22.氟哌酸抑制(      )

A.DNA回旋酶                                                 B.RNA多聚酶

C.Na⁺,K⁺-ATP酶                                               D.二氫葉酸合成酶