Directions:In this section,you will hear 3 short passages.At Directions:In this section,you will hear 3 short passages.At the end of each pas 分类:基础知识 题型:单选题 查看答案
[A] They are attending a concert. [B] They are negotiating a [A] They are attending a concert. [B] They are negotiating about a price. [C] Th 分类:基础知识 题型:单选题 查看答案
直肠给药的特点不包括 直肠给药的特点不包括A.避免肝脏“首过效应”,提高生物利用度 B.控制作用时间比一般口服片剂短 C.用法简单、便于携带 D.低分子肝素等大分子药物可以透过直肠吸 分类:基础知识 题型:单选题 查看答案