试题与答案

下列图例哪个表示的是法兰连接() A. B. C. D.

题型:单项选择题

题目:

下列图例哪个表示的是法兰连接()

A.

B.

C.

D.

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A

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