--_____________

-- I can’t move the box. Can you help me?

A．What do you do?

B．What’s the problem?

C．What can you do?

D．How are you?

不属于油脂性软膏基质的是（）

A.硅酮

B.凡士林

C.聚乙二醇

D.蜂蜡

E.羊毛脂