药物通过生物膜转运机制有（）
A.主动转运
B.促进扩散
C.主动扩散
D.胞饮作用
E.被动扩散
参考答案：A, B, D, E
--- What do you think of these dictionaries?
--- Most of them are updated. Still, ______ is so suitable for high school students as Multifunction English – Chinese Dictionary.
A．nothing
B．neither
C．any
D．None
测缝计是按仪器的什么来划分的。国标中仪器测量范围有哪三种？
