游客 117.30.71.x 发表于 2017-5-10 20:59 张庆芳二级真题,地基与基础,第19题,答案中a`是按柱子截面300取值,不明白为什么不是按基础的上截面宽度 ...
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手机版|小黑屋|第一证书
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