题目内容

冲裁间隙较小时，冲裁件的断面质量相对较好。

A. 对
B. 错

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级进冲裁模是在压力机的一次行程中，在同一工位上完成多种工序的冲裁模。

A. 对
B. 错

冲裁凸、凹模的工作端部要求有光滑的圆角。

A. 对
B. 错

Have you got enough information about their talk? Listen to the conversation again and choose the correct answers to the questions below.(6 ) How long does George Chen work in the company?

A.For several years.
B.Only for a short time.
C.He is fresh out of college.
D.Not mentioned.

2.Have you got enough information about their talk? Listen to the conversation again and choose the correct answers to the questions below.[音频](6 ) When do the employees have a medical examination?

A. Before they start work.
B. After they start work.
C. At any time.
D. Not mentioned.