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【简答题】
某三层饭店消防给水工程示意图,在整个设置消火栓灭火系统,如下图所示。该系统选用单栓DN65室内消火栓,栓口距每层地面1.10m。该系统由两条引入管通过离心泵从市政给水管网直接引水,并配有水泵接合器,管线DNI00环状网布线,埋地部分管材采用承插铸铁给水管____,部分采用镀锌钢管____。楼顶设有屋顶试验消火栓和压力表等组件,构成末端试水装置,检验系统水压。 请读图回答一下问题(图纸在1.2消火栓识图课堂作业PDF文件中) 1.2消火栓识图课堂作业.pdf 1、室内消火栓的管径是____,共有____个消火栓。
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【单选题】Although the human population around the forestland in Middlesex County has increased, the amount of forestland has not been reduced. Therefore, the decrease in the county s songbird population cannot...
A.
As the human population of Middlesex County has grown, there has been an increase in the number of shopping malls built.
B.
The presence of more garbage cans resulting from the increase in the county's human population ensures the survival of more raccoons, which prey on songbird eggs whenever available.
C.
There has recently been a decrease in the amount of rainforest land in Central and South America, where songbirds spend the winter months.
D.
Although several species of songbirds are disappearing from Middlesex County, these species are far from being endangered.
E.
The disappearance of songbirds, which eat insects, often results in increased destruction of trees by insects.
【判断题】Although the followers of the Roman Catholic started the tradition of carnival hundreds of years ago,nowadays Christians all over the world celebrate carnival.()
A.
正确
B.
错误
【单选题】Some students offered _______ money for the children without parents. A. raise B. raising C. raised D. to raise
A.
raise
B.
raising
C.
raised
D.
to raise
【简答题】Although April did not bring the rains we all hoped for, and although the Central Valley doesn’t generally experience the atmospheric (大气的) sound and lightning that can accompany those rains, it is st...
【单选题】Those who want to say anything more your hand and then to speak.
A.
arise; raise
B.
raise; rise
C.
raise; arouse
D.
rise; raise
【简答题】设备的( )寿命，是指设备从投入使用开始，直到因物质磨损而不能继续使用，报废为止所经历的全部时间。 A自然寿命 B经济寿命 C技术寿命 D有效寿命
【单选题】We would like to _______ some money _______ the poor children in our country.
A.
raise, for
B.
raise, to
C.
donate, with
D.
donate, for
【单选题】She is talking about _____ money for poor students. [ ]
A.
raising
B.
raise
C.
do
D.
to raise
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