楼梯浇筑完毕后,应自上而下,将踏步表面进行修整。
参考答案:错
The boy made the same mistakes ________, which, of course, made his parents very angry.[ ]
A. over and over again
B. more or less
C. sooner or later
D. here and there
卷材防水屋面铺贴卷材应采用搭接法。平行于屋脊的搭接缝,应顺______方向搭接;垂直于屋脊的搭接缝,应顺年最大频率风向搭接。
A.顺坡
B.逆坡
C.流水
D.逆水