发布时间:2025-02-08 05:14:43
C40的立方体抗压强度标准值(在标准养护条件下养护达到28D龄期,用标准方法测得的极限抗压强度)为40MPa.
一建报考条件中 从事建设工程项目施工管理工作满3年 含装修工程吗
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