试题与答案

混凝土强度等级为C25,钢筋采用Ⅱ级钢筋,其搭接长度一般取( )。A.30dB.4

题型:单项选择题

题目:

混凝土强度等级为C25,钢筋采用Ⅱ级钢筋,其搭接长度一般取( )。

A.30d
B.40d
C.45d
D.50d

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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