题目内容

8.车床夹具设计时要考虑夹紧安全、可靠。

A. 对
B. 错

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9.车床夹具的夹具体应设计成圆形，为保证安全，夹具上的各种元件不允许凸出圆盘轮廓之外。圆盘直径由车床的主要参数确定。

A. 对
B. 错

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10. 夹具制造精度对夹具的加工精度没有影响。

A. 对
B. 错

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“My boyfriend of nearly two years haddumpedme for an airheaded cheerleader.”In this sentence, the worddumpedmeans __________.

A. put something somewhere in a careless untidy way
B. got rid of something that you do not want
C. ended a relationship with someone
D. told someone all your problems and worries

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"Three of his jockey friendswere more than happy to relatethe news to me." In this sentence, the word relate means.

A. connect in some way
B. feel that you understand someone's problem
C. tell someone something that have happened
D. show or establish logical or causal connection between

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8.车床夹具设计时要考虑夹紧安全、可靠。

A. 对 B. 错

9.车床夹具的夹具体应设计成圆形，为保证安全，夹具上的各种元件不允许凸出圆盘轮廓之外。圆盘直径由车床的主要参数确定。

10. 夹具制造精度对夹具的加工精度没有影响。

“My boyfriend of nearly two years haddumpedme for an airheaded cheerleader.”In this sentence, the worddumpedmeans __________.

"Three of his jockey friendswere more than happy to relatethe news to me." In this sentence, the word relate means.

A. 对
B. 错