试题与答案

水平走线架应成一条直线,与地面保持平行,水平度每米误差不大于()。A.2mm B.3

题型:单项选择题

题目:

水平走线架应成一条直线,与地面保持平行,水平度每米误差不大于()。

A.2mm

B.3mm

C.5mm

D.8mm

答案:

参考答案:A

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