The meeting is _______ till tomorrow. [ ]
A. put off
B. put on
C. put away
D. put up
答案:A
下列哪些是肺静脉高压征象().
A.上肺静脉扩张,下肺静脉不扩张
B.kerleyB线
C.肺门呈蝶翼状
D.肺野清晰
E.肺门截断现象
衡量药物进入体内后吸收速度快慢的参数是______。
A.K B.KaC.Vd D.t1/2E.F