试题与答案

输送液体介质的工业管道,支管宜从主管的()结出,以利于流体的运送。 A.上方 B.下

题型:单项选择题

题目:

输送液体介质的工业管道,支管宜从主管的()结出,以利于流体的运送。

A.上方

B.下方

C.前方

D.后方

答案:

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参考答案:错

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