题目内容

Mr. White: __________, Tom. We are glad to have you. Now I ’m sure you ’re excited to be back home soon.
Tom: Oh, yes.

A. Don’t say that
B. It ’s very kind of you to say that
Come on
D. That’s all right

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设计零件结构时,应尽量选用标准件。()

一般说来,越是精加工,工序余量越大。()

在具体设计零件结构时,应注意刀具的引进和退出要方便。()

工件的安装方法大致可分为直接安装法和利用专用夹具安装法。()

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