题目内容：
You _ all those calculations! We have a computer to do that sort of thing.A needn’t have done B must not have done
C shouldn’t have done D can not have done
参考答案：
选择题：You _ all those calculations! We have a computer t
- 题目分类：统招专升本-----英语
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A needn’t have done B must not have done
C shouldn’t have done D can not have done