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【单选题】

Rapid Police Response Police departments in the United States and Canada see it as central to their role that they respond to calls for help as quickly as possible. This ability to react fast has been greatly improved with the aid of technology. The telephone and police radio, already long in use, assist greatly in the reduction of police response time. In more recent times there has been the introduction of the ’’911’’ emergence system, which allows the public easier and faster contact with police, and the use of police computer system, which assist police in planning patrols and assigning emergency requests to the police officers nearest to the scene of the emergency. An important part of police strategy, rapid police response is seen by police officers and the public alike as offering tremendous benefits. The more obvious ones are the ability of police to apply first-aid life-saving techniques quickly and the greater likelihood of arresting people who may have participated in a crime. It in identifying those who witnessed an emergency or crime, as well as in collecting evidence. The overall reputation of a police department, too, is enhanced if rapid response is consistent, and this in itself promotes the prion of crime. Needless to say, rapid response offers the public some degree of satisfaction in its police force. While these may be the desired consequences of rapid police response, actual research has not shown it to be quite so beneficial. For example, it has been demonstrated that rapid response leads to a greater likelihood of arrest only if responses are on the order of 1-2 minutes after a call is received by the police. When response times increase to 3-4 minutes — still quite a rapid response — the likelihood of an arrest is substantially reduced. Similarly, in identifying witnesses to emergencies or crimes, police are far more likely to be successful if they arrive at the scene no more than four minutes, on average, after receiving call for help. Yet both police officers and the public define "rapid response" as responding up to 10-12 minutes after calling the police for help. Should police assume all the responsibility for ensuring a rapid response Studies have shown that people tend to delay after an incident occurs before contacting the police. A crime victim may be injured and thus unable to call for help, for example, or no telephone may be available at scene of the incident. Often, however, there is no such physical barrier to calling the police. Indeed, it is very common for crime victims to call their parents, their minister, or even their insurance company first. When the police are finally called in such case, the effectiveness of even the most rapid of responses is greatly diminished. The effectiveness of rapid response also needs to be seen in light of the nature of the crime. For example, when someone rings the police after discovering their television set has been stolen from their home, there is little point, in terms of identifying those responsible for the crime, in ensuring a very rapid response. It is common in such burglary or theft cases that the victim discovers the crime hours, days, even weeks after it has occurred. When the victim is directly involved in the crime, however, as in the case of a robbery, rapid response, provided the victim was quickly able to contact the police, is more likely to be advantageous. Based on statistics comparing crimes that are discovered and those in which the victim is directly involved, Spelman and Brown (1981) suggest that three in four calls to police need not be met with rapid response. It becomes clear that the importance of response time in collecting evidence or catching criminals after a crime must be weighed against a variety of factors. Yet because police department officials assume the public strongly demands rapid response, they believe that every call to the police should be met with it. Studies have shown, however, that while the public wants quick response, more important is the information given by the police to the person asking for help. If a caller is told the police will arrive in five minutes but in fact it takes ten minutes or more, waiting the extra time can be extremely frustration. But if a caller is told he or she will have to wait 10 minutes and the police indeed arrive within that time, the caller is normally satisfied. Thus, rather than emphasizing rapid response, the focus of energies should be on establishing realistic expectations in the caller and every attempt to meet them. The public and the police generally agree on the amount of time normally taken for a rapid response.

A.
Y
B.
N
C.
NG
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【单选题】The phrase "caved in" (lines 3-4,paragraph 2) most probably means() A.yielded. B.entered. C.promised. D.criticized.

A.
Trying to get Americans to eat a healthy diet is a frustrating business. Even the best-designed public-health campaigns cannot seem to compete with the tempting flavors of the snack-food and fast-food industries and their fat-and sugar-laden products. The results are apparent on a walk down any American street—more than 60% of Americans are overweight, and a full quarter of them are overweight to the point of obesity.
B.
Now, health advocates say, an ill-conceived redesign-has taken one of the more successful public-health campaigns--the Food Guide Pyramid--and rendered it confusing to the point of uselessness. Some of these critics worry that America’ s Department of Agriculture caved to pressure from parts of the food industry anxious to protect theft products.
C.
The Food Guide Pyramid was a graphic which emphasizes that a healthy diet is built on a base of gains, vegetables and fruits, followed by ever-decreasing amounts of dairy products, meat, sweets and oils. The agriculture department launched the pyramid in 1992 to replace its previous program, which was centered on the idea of four basic food groups. The "Basic Four" campaign showed a plate divided into quarters, and seemed to imply that meat and dairy products should make up haft of a healthy diet, with grains, fruits and vegetables making up the other half. It was replaced only over the strenuous objections of the meat and dairy industries.
D.
The old pyramid was undoubtedly imperfect. It failed to distinguish between a doughnut and a whole-grain roll, or a hamburger and a skinless chicken breast, and it did not make clear exactly how much of each foodstuff to eat. It did, however, manage to convey the basic idea of proper proportions in an easily understandable way. The new pyramid, called "My Pyramid", abandons the effort to provide this information. Instead, it has been simplified to a mere logo. The food groups are replaced with unlabelled, multi-colored vertical stripes which, in some versions, rise out of a cartoon jumble of foods that look like the aftermath of a riot at a grocery store. Anyone who wants to see how this translates into a healthy diet is invited to go to a website, put in their age, sex and activity level, and get a custom-designed pyramid, complete with healthy food choices and suggested portion sizes. This is free for those who are motivated, but might prove too much effort for those who most need such information.
E.
Admittedly, the designers of the new pyramid had a tough job to do. They were supposed to condense the advice in the 84-page United States’ Dietary Guidelines into a simple, meaningful graphic suitable for printing on the back of a cereal box. And they had to do this in the face of pressure from dozens of special interest groups--from the country’ s Potato Board, which thought potatoes would look nice in the picture, to the Almond Board of California, which felt the same way about almonds. Even the National Watermelon Promotion Board and the California Avocado Commission were eager to see their products recognized.
F.
Nevertheless, many health advocates believe the new graphic is a missed opportunity. Although officials insist industry pressure had nothing to do with the eventual design, some critics suspect that political influence was at work. On the other hand, it is not clear how much good even the best graphic could do. Surveys found that 80% of Americans recognized the old Food Guide Pyramid--a big success in the world of public-health campaigns. Yet only 16% followed its advice.

【单选题】Spring is usually prime food time for some 1,200 polar bears along Canada’’s Hudson Bay. Each year they plunder the bay’’s ice floes, smash open the snow caves of seals, and stuff themselves on seal p...

A.
spring is usually a good time for polar bears to carry out their mating rituals
B.
the polar bears usually eat a lot in the spring
C.
spring is generally a good time to hunt polar bears
D.
polar bears usually hibernate in the spring

【单选题】Passage One Questions 26 to 29 are based on the passage you have just heard. Passage OneQuestions 26 to 29 are based on the passage you have just heard.

A.
They would violate the United States Constitution.
B.
They may add financial burden to the federal government.
C.
They could limit the ability of teachers to be creative.
D.
They prevent the individual development.

【单选题】木建筑的公共疏散门应为()。 A.侧拉门 B.防火门 C.吊门 D.转门

A.
某市高档写字楼进行装修改造,主要施工项目有,吊顶、地面(石材,地砖、木地板)、门窗安装,墙面为墙纸、乳胶漆;卫生间墙面为瓷砖,外立面采用玻璃幕墙,回廊采用玻璃护栏,门窗工程、吊顶工程,细部工程等采用人造木板和饰面人造木板。