刚性防水屋面的结构层宜为( )。
A.整体现浇钢筋混凝土
B.采用的混凝土强度等级小于C20
C.预制混凝土屋面板
D.砌体
参考答案:A
You have been working on a very large software development project that has made use of over 230 people. Finally, all the scope of work is completed, it would be BEST to______.
A) throw a party for the team members B) make sure the project is integrated with other projects C) begin to focus on your other projects D) analyze project success or failure
外排屑深孔钻倒锥度大小,会引起()。
A.尺寸超差
B.钻头损坏
C.排屑不顺
D.孔不圆