A police department is interested in disk storage for a video application. Once the data is stored todisk it will be backed up to tape for long term storage. The array must have the highestperformance. Redundancy is not required. What RAID level will meet this requirement？（）A、RAID 1B、RAID 0C、RAID 5D、RAID DP
A police department is interested in disk storage for a video application. Once the data is stored todisk it will be backed up to tape for long term storage. The array must have the highestperformance. Redundancy is not required. What RAID level will meet this requirement？（）
- A、RAID 1
- B、RAID 0
- C、RAID 5
- D、RAID DP
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他们配合警察， 协管周围道路的车辆和行人A.They will assist the police to supervise the traffic and passengers as wellB.They will help the police to control the traffic and pedestrians as well.C.They will cooperate with the police in checking the traffic and pedestrians as well.D.They will obey the police to control the traffic and pedestrians as well.
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POLICE INVESTIGATING CHILD LURING CASE Sank police were investigating a possible child luring case near a primary school. It happened on Tuesday afternoon, during the lunch hour. Mary, a student of John Lake School was approached by two men in a black van. She refused and ran away. When she arrived at school, she reported it to the school staff. The schools and the police took it seriously. The schools wrote a letter to parents immediately, informing them of the case and making safety suggestions. Police are looking into the matter. Police responded to the case as soon as they received the report. "It's a matter of public safety," said the police spokesperson. "We want to make sure everybody, including kids, adults and people out and about are safe.So, we take this very seriously." Police were making some safety suggestions for the students. Police asked students to always be on their guard when walking to school.Kids were encouraged to walk in pairs and walk in the daylight where it's well lit. One of the police officer said, "… Students should try to walk where there are people around, and always let somebody, your family or friends, know where you are going."1. The two men in the black van ().A. knew MaryB. was the school staffC. probably wanted to lure Mary2. Mary is probably a() school student.A. kindergarten(幼儿园)B. primaryC. middle3.() too the case seriously.A. The schoolsB. The policeC. Both of the above4. In order to be safe when going to school, kids should()A. go to school on their ownB. take self-defense sprayers(自卫喷雾器)C. not tell anyone where they’re going5. This case indicated that() should pay attention to the safety problems.A. the publicB. the parentsC. only school kids
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On television all over the world there are programmes about the work of the police．They are popular because they are usually very exciting．In London there is a television programme called"Police Five"--because it is on for five minutes once a week．A television reporter,Shaw Taylor,talks about crimes in the London area．He asks for public help．The police station needs the help of ordinary people because sometimes you or I have information that can be useful to the police.Shaw Taylor shows pictures of paintings,jewellery(珠宝)and other things which thieves stole during the week．Sometimes he shows the car that the thieves escaped in．When people see men or things on the television programme which they may remember,they can tell the police where they saw them．With their help the police may catch more criminals.Sometimes the police find a car or some money．Shaw Taylor shows them on television．The owners sometimes see them．Then they can telephone the police and say,"Thank you very much--that's mine!"The television programme is called"Police Five",because it is about the work of the police and__.A.it is on for five times every seven daysB.it lasts five minutes a weekC.it begins at five in the afternoonD.it is a programme about five policemen
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Which statement describes how RSVP guarantees bandwidth reservations?（）A、It polices each individual session to an explicit rate.B、It does not police, but never allows link oversubscription.C、It polices the aggregate rate of all sessions to an explicit rate.D、It does not police, but limits the amount of reservable bandwidth.
单选题Two figures are mentioned in the last paragraph to indicate _____.Athe Public Transit system’s efficiencyBthe success of Transit Police programCthe police’ s emphasis on security of downtown areasDthe worsening security condition of the area
问答题Passage 1Rapid Police Response A 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” emergency system, which allows the public easier and faster contact with police, and the use of police computer systems, which assist police in planning patrols and assigning emergency requests to the police officers nearest to the scene of the emergency. B 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 lifesaving techniques quickly and the greater likelihood of arresting people who may have participated in a crime. It aids 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 prevention of crime. Needless to say, rapid response offers the public some degree of satisfaction in its police force. C While these may be the desired consequences of rapid police response, actual research has not shown it to be so beneficial. For example, it has been demonstrated that rapid response leads to a greater likelihood of arrest only if responses are in 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 a 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. D 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 the 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 cases the effectiveness of even the most rapid of responses is greatly diminished. E 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. F 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 frustrating. 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 making every attempt to meet them.List of Headings i The presumptions of policy makers ii Need for more equitable parenting policies iii The impact of dual employment iv Comparison of employed and non-employed mothers v The benefits of balanced responsibility vi The unchanged role of the female parent vii The effect of stress on the female parent viii Disadvantages of parental equality ix The experts’ view of the male parent’s role x Commitment of mothers to their paid jobs xi Origins of anxiety in working mothers Example Answer Section A. …ii… 1. Section B 2. Section C 3. Section D 4. Section E 5. Section F
问答题简述流量监管技术（police）。