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  3. Calculating Crime When you think about maths, you probably don’t think about breaking the law, solving mysteries or finding

Calculating Crime When you think about maths, you probably don’t think about breaking the law, solving mysteries or finding

admin2011-04-18  54
问题                        Calculating Crime
    When you think about maths, you probably don’t think about breaking the law, solving mysteries or finding criminals. But a mathematician in Maryland does, and he has come up with mathematical tools to help police find criminals.
    People who solve crimes look for patterns that might reveal (揭示) the identity of the criminal. It’s long been believed, for example, that criminals will break the law closer to where they live, simply because it’s easier to get around in their own neighborhood. If police see a pattern of robberies in a certain area, they may look for a suspect who lives near the crime scenes. So, the farther away from the area a crime takes place, the less likely it is that the same criminal did it.
    But Mike O’Leary, a mathematician at Towson University in Maryland, says that this kind of approach may be too simple. He says that police may get better clues to the location of a criminal’s home base by combining these patterns with a city’s layout (布局) and historical crime records.
    The records of past crimes contain geographical information and can reveal easy targets—that is, the kind of stores that might be less difficult to rob. Because these stores are along roads, the locations of past crimes contain information about where major streets and intersections are. O’Leary is writing a new computer program that will quickly provide this kind of information for a given city. His program also includes information about the people who live in the city, and information about how a criminal’s patterns change with age. It’s been shown, for example, that the younger the criminal, the closer to home the crime.
    Other computer programmers have worked on similar software, but O’Leary’s uses more maths. The mathematician plans to make his computer program available, free of charge, to police departments around the country.
    The program is just one way to use maths to fight crime. O’Leary says that criminology—the study of crime and criminals—contains a lot of good math problems. " I feel like I’m in a gold mine and I’m the only one who knows what gold looks like, " he says. "It’s a lot of fun. "
O’Leary is writing a computer program that______.
选项 A、uses math to increase the speed of calculation
B、tells the identity of a criminal in a certain area
C、provides the crime records of a given city
D、shows changes in criminals’ position
答案C
解析 本题是细节考查题。题目是：奥利里编写的计算机程序______。选C的依据是：第四段第三句：“O’Leary，is writing a new computer program that will quickly provide this kind of information for a given city．”所谓这种信息指的是前面一句所提到的地理信息和易受抢劫的对象这样的犯罪记录。选项C．提供特定城市的犯罪记录，符合题意，所以C是正确选项。选项A．用数学加快计算速度；选项B．辨认出某一地区的罪犯身份；选项D．显示罪犯位置的改变，都不符合这套程序的特点。
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