属于浓度依赖型的抗菌药物是（）
A．头孢哌酮
B．去甲万古霉素
C．磺胺甲噁唑
D．阿米卡星
E．制霉菌素
参考答案：D
— Whom shall I give the document?
— To ________ is in the office. However, _______to require a written paper for it.
A．whom; make sure
B．who; make sure
C．whomever; be sure
D．whoever; be sure
比较物体的长短、高矮时，要把它们的一端（ ）。
