试题与答案

高压管道在直段焊接时,接长小()时只能有一个焊接口。A.1m B.2m C.5m D

题型:单项选择题

题目:

高压管道在直段焊接时,接长小()时只能有一个焊接口。

A.1m

B.2m

C.5m

D.8m

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B

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