【单选题】以下属于首关效应的是
A.
硝酸甘油舌下给药经肠粘膜及肝脏代谢后,进入体循环药量减少
B.
肌注地西泮被肝药酶代谢后,进入体循环药量减少
C.
口服苯巴比妥经肝药酶代谢后,进入体循环的药量减少
D.
硫喷妥钠吸收后贮存于脂肪组织使体循环药量减少
【简答题】请简要概述具象形态与抽象形态的含义,并举例说明。
【单选题】What will Jane and Jack most probably do next?
A.
They will get back to their seats.
B.
They will have dinner together in a restaurant nearby.
C.
They will go back tome.
D.
They will meet the dancers on the stage.
【简答题】Jane and Tome______ (be) my friends.
【简答题】简述文献的构成要素。 2.按出版形态划分,常见的 文献类型有哪些? 3 .简述文献检索的概念和类型。