网络协议

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(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(嫌疑犯) 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 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.”

小题1:

To find criminals, police usually ______.

A．focus on where crimes take place

B．seek help from local people

C．depend on new mathematical tools

D．check who are on the crime scene小题2:

O’Leary is writing a computer program that ______.

A．uses math to increase the speed of calculation

B．tells the identity of a criminal in a certain area

C．shows changes in criminals’ patterns

D．provides the crime records of a given city小题3:

By “I’m the only one who knows what gold looks like”, O’Leary means that he ______.

A．is better at finding gold than others

B．is the only one who uses math to make money

C．knows more criminals than other mathematicians

D．knows best how to use math to help solve crimes小题4:

What is the main idea of the text?

A．Criminals live near where crimes occur.

B．Math could help police find criminals.

C．Crime records could be used to fight crime.

D．Computer software works in preventing crimes.

利用领带捆绑时，将敌双臂于背后交叉，两（）重叠，用领带在其腕关节处缠绕一圈，打一死结即可。

业务承接与保持中，税务师事务所在确定是否接受新业务时，以下事项中不需要考虑的是( )。

A．客户可能涉嫌违法犯罪行为的迹象
B．在需要时，是否能得到专家的帮助
C．是否拥有足够的具有必要素质和专业胜任能力的人员
D．是否能够在提交报告的最后期限内完成任务

钢材涂色的目的是便于生产现场的管理和库房成品的保管、发货。

これ以上大きな地震は、あと100年は起こる（）。

A.まい

B.はず

C.わけ

D.こと