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【简答题】
In Britain, people have different attitudes towards the police. Most people generally appreciate them and the job they do—although there are certain people who do not believe that the police should have the power that they do. What does a policeman actually do? It is not 1 job to describe. After all, a policeman has a number of jobs in one. A policeman often has to control traffic, either 2 foot in the centre of a town, or in a police car on the roads. Indeed, in Britain, he might be in the Traffic Police and spend all, or a lot of, his time driving up and down main roads and motorways. A traffic policeman has to help keep the traffic moving, stop 3 motorists and help when there is an accident. A policeman has to help keep the 4 , too. If there is a fight or some other disturbance, we 5 the police to come and restore order. And they often have to deal with situation at great risk to their own safety. We expect the police to solve crimes, of course, so an ordinary policeman, 6 he is not a detective, he will often have to help look for and arrest criminals. And 7 do we call when there is an emergency—an air crash, a fire, a road accident, or a robbery? We call the police. 8 a policeman has to be 9 to face any unpleasant emergency that may happen in the modern world. The police do an absolutely necessary job. They do it 10 well and I support them, but I do not envy policemen. I do not think that I could ever do the job of a policeman.
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参考答案:
举一反三
【简答题】电路如图2—16(a)所示,已知E=10 V、IS=1 A,R1=10Ω、R2=R3=5Ω,试用叠加定理求流过R2的电流I2和理想电流源IS两端的电压US。
【简答题】在大众化旅游时代,旅游的( )需求愈加突出,人们对旅游产品的需求也正在从( )旅游向( )产品及( )产品转化,对产业的需求正在从初级向中高阶方向转化。
【多选题】基坑变形一般指()
A.
承压水面下降
B.
围护墙体变形
C.
坑底隆起变形
D.
地表变形
【简答题】电路如题图E2—8所示,已知US1=20 V,US2=10V,US3=10 V,R1=R4=10 kΩ,R2=R3=R5=5 kΩ。求电阻R4两端电压。
【判断题】按照技术差距贸易论,技术差距决定了国际贸易的某种格局。()
A.
正确
B.
错误
【简答题】如图所示电路中,已知E1=40V,E2=5V,E3=25V,R1=5ΩR2=R3=10Ω,试用支路电流法求各支路电流。
【单选题】当散热器组对成组时,各片之间彼此吸收辐射热,热量不能全部散出,23片散热器的片数修正系数是( )的数。
A.
1.1
B.
1.05
C.
1.0
D.
0.95
【简答题】如图所示电路中,已知E 1 =40V,E 2 =5V,E 3 =25V,R 1 =5Ω,R 2 =R 3 =10Ω,试用支路电流法求各支路的电流。
【单选题】关于马斯格雷夫和罗斯托经济发展阶段论表述正确的是( )
A.
传统社会向现代工业经济发展的历史演变分为两个阶段
B.
经济发展的早期阶段,政府投资的重点是教育
C.
经济发展的早期阶段,政府投资的重点是基础设施
D.
经济发展的中期阶段,政府投资将会下降
【简答题】简述遮阳型LOW-E玻璃的特点。
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