当混凝土强度达到设计要求后才能张拉,在无规定的时候,一般要在混凝土强度大到设计强度等级的 ( )以上才能进行张拉。
A.60%
B.70%
C.80%
D.90%
正确答案是B
扫描二维码免费使用微信小程序搜题/刷题/查看解析。
版权声明:本文由翰林刷题小程序授权发布,如需转载请注明出处。
本文链接:https://doc.20230611.cn/post/453056.html
上一篇:Passage 2Music which is original is individual and personal. That is to say, it can be identified as belonging to a particular composer. It has particular qualities, or a style, which are not copied from another. If you can recognize the style of
下一篇:Passage 3Problems Potential Exporters Are FacingMany firms fail to succeed, because when they begin exporting they have not researched the target markets or developed an internationa marketing plum. To be successful, a firm must clearly defin