药物的首过消除发生于()。
A.舌下给药后
B.吸入给药后
C.口服给药后
D.静脉给药后
E.皮下给药后
参考答案:C
解析:药物的首过消除发生在口服给药之后。故本题选C。
Professor Li, who I ____ abroad, still teaches in Peking University.
A.think went
B.think to have gone
C.thought went
D.thought had gone
将汽提气通入重沸器的汽提柱中,TEG的浓度最高可达()
A、99%
B、99.6%
C、99.9%
D、99.95%