16.下列各類型藥物中具有調節(jié)血脂作用的是

A.二氫吡啶類                                                  B.芳氧乙酸類

C.膜抑制劑類                                                  D.β受體阻滯劑類

17.可改善輕度老年癡呆癥的是

A.甘露醇                                                         B.氫氯噻嗪

C.吡拉西坦                                                      D.鹽酸甲氯芬酯

18.關于H₂受體拮抗劑的構效關系正確的是

A.藥效基團就是堿性芳雜環(huán)

B.咪唑環(huán)是活性必須具備的基團

C.平面基團是非極性的

D.分子中間由一條四原子的柔性鏈連接

19.環(huán)磷酰胺是______類的烷化劑。

A.氮芥                                                             B.乙烯亞胺

C.磺酸酯                                                         D.亞硝基脲

20.屬于乙酰膽堿酯酶抑制劑的是

A.硫酸阿托品                                                  B.溴丙胺太林

C.哌侖西平                                                      D.毒扁豆堿