试题与答案

桥梁上的栏杆应直顺平直,联结牢固,无扭曲,10m弦矢度小于()。A、15mm B、2

题型:单项选择题

题目:

桥梁上的栏杆应直顺平直,联结牢固,无扭曲,10m弦矢度小于()。

A、15mm

B、20mm

C、25mm

D、30mm

答案:

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