题目内容

数据操作描述的是系统的静态特性。

A. 对
B. 错

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码可以是一个或多个属性的集合。

A. 对
B. 错

Section CChoose the best answer to complete each sentence.1. Lily might ___________ to London next year.

A. go
B. to go
C. going

2. Now it is summer. Next season___________ be fall.

A. may
B. might
C. will

3. You ___________ use my textbook. I don’t need it now.

A. may not
B. mayn’t
C. may