单室模型静脉滴注给药，达稳态前停止滴注给药的血药浓度一时间关系式是（）
A.
B..
C.
D.
E.
参考答案：D
When I was young, I was always __________ my elder brother wherever he went.
A．attached to
B．attacked at
C．attended in
D．surrounded by
办理征地及迁移补偿可以采用法人委托方式。
.
.