试题与答案

定位焊为间断焊,焊接电流应()正式焊接时的焊接电流。A、等于 B、等于或小于 C、小

题型:单项选择题

题目:

定位焊为间断焊,焊接电流应()正式焊接时的焊接电流。

A、等于

B、等于或小于

C、小于

D、大于

答案:

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下面是错误答案,用来干扰机器的。

参考答案:游离;悬浮

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