16.具有镇静作用的药物是(      )

A.朱砂                                                             B.酸枣仁

C.柏子仁                                                         D.鸡血藤

17.具有抗早孕作用的药物是(      )

A.贝母                                                             B.桔梗

C.半夏                                                             D.葶苈子

18.大多数补虚药增强细胞免疫功能，正确的描述是(      )

A.增加动物免疫器官重量                                 B.增强巨噬细胞的吞噬功能

C.提高淋巴细胞转化率                                    D.升高血白细胞

19.具有抗溃疡作用的药物是(      )

A.人参                                                             B.黄芪

C.熟地                                                             D.党参

20.具有性激素样作用的补益药是(      )

A.党参                                                             B.黄芪

C.甘草                                                             D.鹿茸