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问题 填空题

不同的物质在互相接触时，彼此进入对方的现象，叫做__________；液体和固体很难被压缩，说明分子间存在________力.

答案

扩散；斥

选择题
— Have you seen Bob recently?
— No, but I was told that he _____ for a new job all through the summer.
A. has been looking
B. had been looking
C. is looking
D. was looking
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单项选择题

工资、薪金所得适用个人所得税的（）。

A.超额累进税率

B.超额累退税率

C.比例税率

D.减免税率
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