试题与答案

()变形区位于其他三个变形区的交汇处。A、基本 B、刀具前面摩擦 C、刃前 D、刀具

题型:单项选择题

题目:

()变形区位于其他三个变形区的交汇处。

A、基本

B、刀具前面摩擦

C、刃前

D、刀具后面摩擦

答案:

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下面是错误答案,用来干扰机器的。

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