离心泵运转良好的标准中要求流量平稳,能满足生产学要或者达到铭牌能力()
A、50%以上
B、70%以上
C、80%以上
D、90%以上
参考答案:D
.
The jewelry shop is reported in the local newspaper ___ last night.
A.to have robbed
B.having been robbed
C.to be robbed
D.to have been robbed
屋面工程技术规范(GB50345-2012):涂膜防水层的施工环境温度符合规定的有:()
A.溶剂型涂料宜为-5℃~35℃
B.水乳型及反应型涂料宜为5℃~35℃
C.热熔型涂料不宜低于-10℃
D.聚合物水泥涂料宜为5℃~35℃