什么是大板建筑外墙构造防水
参考答案:构造防水就是在预制外墙板的接缝处设置一些线型构造,如披水、挡水台、排水坡、滴水槽等形成空腔,防止雨水进入,并把进入墙内的雨水排出室外。
农业用水适用于《地表水环境质量标准》的( )类标准。
A.Ⅱ
B.Ⅲ
C.Ⅳ
D.Ⅴ
A special team will ______ the matter as soon as possible. Just have a little patience.
A.look into
B.look up
C.look after
D.look through