问题
选择题
31．The man stopped his bicycle beside the car______it had a broken chain．
A．or
B．until
C．as
D．Yet
答案
答案：C
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31．The man stopped his bicycle beside the car______it had a broken chain．
A．or
B．until
C．as
D．Yet
答案：C
，f=360N／mm），箍筋采用HPB300级钢筋（φ，=270N／mm）。取a=as=40mm，ξ=0.518。
（mm），与下列何项数值最为接近（）？