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【单选题】
自动喷水灭火系统设置场所的危险等级应根据建筑规模,高度以及火灾危险性,火灾负荷和保护对象的特点等确定。下列建筑中,自动喷水灭火系统设置场所的火灾危险等级为中危险级l级的是()
A.
建筑高度为50m的办公楼
B.
筑高度为23m的四星级旅馆.
C.
2000个座位剧场的舞台
D.
总建筑面积5600m 2 的商场
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【多选题】桥梁结构由()组成?
A.
上部结构
B.
下部结构
C.
基础结构
D.
附属结构
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A.
You do not have to.
B.
It does not matter.
C.
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D.
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A.
Take them by yourself.
B.
By mail.
C.
Download them from iTunes.
D.
Using a reference number.
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A.
正确
B.
错误
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【多选题】桥梁结构由(    )组成?
A.
基础结构
B.
上部结构
C.
下部结构
D.
附属结构
【简答题】A.The man is not going to have a second baby. B.The man might stay at home more and more. C.The baby girl takes after the man in the appearance. D.The man's colleagues have bought something as gifts.
【单选题】Read and choose the best answer.If you're looking for ways to improve your products or services, customers can be one of your most valuable sources of information and market research. So why not take ...
A.
expanding your business
B.
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C.
selling your products or services
D.
improving your products or services
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