题目内容

Complete each conversation with one of three words.A: I didn’t get your letter. Can you send it again?B: I already ____________ it.

A. resent
B. unsend

C. imsend

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A: Do you agree with me?B: No, I ____________.

A. unagree
B. disagree
C. imagree

A: What do you think is not healthy?B: It’s ____________ to run in very hot weather.

A. imhealthy
B. dishealthy
C. unhealthy

A: My shirt is still dirty. Is it possible to wash it now?B: Oh, I think it is ____________ , since it is midnight now.

A. impossible
B. unpossible
C. dispossible

关于计算机语言的编译,下列说法不正确的是_____。

A. 需要“分词”,将其中的常量、变量名和保留字识别出来,并分类及编号
B. 需要识别每一条语句所对应的“模式”。任意语句的常量和变量名被归为“标识符”类别,而标识符与保留字的不同组合关系构成了语句的模式;计算机语言是由有限的语句模式构成的
C. 对每一种模式,都有相应的组合构造方法,即模式可被认为是由原子模式或说基本模式通过组合的方法构造出来的,对原子模式或者基本模式可以事先写好其相应的目标语言的指令或语句
D. 上述有不正确的

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