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Calculating Crime When you think about math, you probably don’t think abo...

admin2020-12-24  22
问题 Calculating Crime  
When you think about math, 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 the identity of the criminal. Ifs 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 one’s 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 an offenders home base by combining these patterns with a city's layout 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 （十字路口） 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 math. 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 math 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 includes all the following information in writing his program EXCEPT
选项 A the records of past crimes.
B the locations of police bureaus.
C the people living in the city.
D the change of a criminars patterns with age.
答案B
解析文章第三段最后一句话提到Mike O’Leary的程序中包括对过去违法的记录；文章第四段提到他的程序中还包括居住在这个城市的居民和不同年龄罪犯的犯罪模式的信息。文章并没有提及他的程序还包括警察局的位置。答案为B。
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