关于放射性测量的闪烁晶体，描述不正确的是（）。 A.晶体的作用是把射线的辐射能转换成

In Britain, people have different attitudes(态度) to the police. Most people generally appreciate(欣赏) them and the job they do—although there are some people who do not believe that the police _    have the power that they do.
　　What does a policeman do in fact? It is not _    job to describe. After all, a policeman has a number of jobs in one. A policeman often has to control traffic, either on 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     _ motorists and help when there is an accident.
　　A policeman has to help keep the peace, too. If there is a fight or some other disturbance(动乱), we _   _ the police to come and keep order. And they often have to _    the situation at great risk to their own     _.
　　We expect the police to solve crimes, of course, so an ordinary(普通) policeman, even if he is not a detective, will often have to help _   _ and arrest criminals.
　　And _   __ do we call when there is an emergency—an air crash, a _   , a road accident, or a robbery? We call the police. So a policeman has to be _    to face any unpleasant emergency that may happen in the modern world.
　　The police do a necessary job, and they do it very 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.

小题1:	A．should B．would C．could D．must

小题2:	A．a funny B．a pleasant C．an interesting D．an easy

小题3:	A．resting B．tired C．speeding D．drinking

小题4:	A．wait for B．believe C．think of D．expect

小题5:	A．turn to B．stop C．deal with D．treat

小题6:	A．safety B．families C．future D．friends

小题7:	A．remove B．question C．look for D．sentence

小题8:	A．how B．where C．what D．who

小题9:	A．power failure B．fire C．thunder storm D．thief

小题10:

A．provided B．promised C．prepared D．presented