欢迎来到牛牛题库网 牛牛题库官网
logo
搜索

单项选择题

下列地下防水工程水泥砂浆防水层做法中，错误的是：( )

A.基层表面应平整、坚实、清洁，并应充分湿润、无明水
B.分层铺抹或喷涂，铺抹时应压实、抹平，最后一层表面应提浆压光
C.防水层宜连续施工；必须留设施工缝时，应采用阶梯坡形槎
D.防水层最小厚度不得小于设计厚度
点击查看答案&解析

相关考题

单项选择题
有10 件同类产品，其中不合格品3 件，从这10 件产品中连续出2 次，每次出1 件，抽后放 田， 2 次都是不合格的概率( )。
A.O.6
B.0.01
C.0.09
D.0.1
单项选择题
It may be pointed out that warfare(战争) as practiced by man has no parallel in nature. This is to say that within the more highly developed animal populations of this earth, there is not now, nor has there been similar destruction within a species(物种) itself. In fact, one has to go to the lowliest forms of animal life, such as certain kinds of ants, to find anything comparable to human warfare. It is a curious fact that mankind appears to give the killing of his own kind a good reason by imaging that it is a "law of nature". There are now a lot of wrong ideas about the laws of nature, of which this is one of the most incorrect and fateful(致命的). Political beliefs have been based upon it with results that have come near to destroying human civilization. The theory that war is a biological necessity, that it is nature′s method of controlling population and believing in the survival(生存) of the strong and the elimination(灭亡) of the weak,is totally wrong and insupportable. Within the last century, when wars have been common all over the world ,the human population of the earth has almost doubled.
The main idea of this passage is .
A.warfareisa"lawofnature"
B.warfareisnota"lawofnature"
C.warfaredoesnotcontrolhumanpopulation
D.noneofthelowlieranimals,exceptants,practicewarfareupontheirownspecies
判断题
继电器输出型PLC能直接使用绝对定位指令DRVA控制步进电动机。
微信小程序免费搜题

All Rights Reserved 版权所有©牛牛题库网(nntiku.com)

备案号：湘ICP备2022003000号-1

微信扫一扫,加关注免费搜题

微信扫一扫,加关注免费搜题