2.  >>  高等继续教育 / 钢结构
 高等继续教育 / 钢结构
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题型描述: 单选题
钢结构的正常使用极限状态是（）
A.结构使用了50年
B.结构发生了剧烈振动
C.结构发生了失稳
D.结构使用了100年
  积分
钢结构
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