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An insurance company believes that people can be d...

An insurance company believes that people can be divided into two classes: those who are accident prone and those who are not. The company's statistics show that an accident-prone person will have an accident at some time within a fixed 1-year period with probability 0.3, whereas this probability decreases to 0.1 for a person who is not accident prone. If we assume that 20 percent of the population is accident prone, what is the probability that a new policyholder will have an accident within a year of purchasing a policy?

A、0.10

B、0.12

C、0.14

D、0.16

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第1题

An insurance company believes that people can be d...

An insurance company believes that people can be divided into two classes: those who are accident prone and those who are not. The company's statistics show that an accident-prone person will have an accident at some time within a fixed 1-year period with probability 0.3, whereas this probability decreases to 0.1 for a person who is not accident prone. We assume that 20 percent of the population is accident prone. Suppose that a new policyholder has an accident within a year of purchasing a policy. What is the probability that he or she is accident prone?

A、

B、

C、

D、

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第2题

The author believes that nobody can keep his personal data secret because______.

A.one"s personal information is easily accessible to many people

B.identity theft has been increasing much faster than ever before

C.personal information is needed to create an identifying code

D.more companies have relocated their call centers overseas

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第3题

The writer believes that learning a foreign language can help a person understand their own language better.

A.Y

B.N

C.NG

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第4题

The author strongly believes that ______.

A.work is not all that people need though it is important.

B.work can offer people fulfillment

C.the economic recession can improve the people's quality of life

D.the flextime can satisfy people's needs.

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第5题

The author strongly believes that______.

A.work is not all that people need though it is important

B.work can offer people fulfillment

C.the economic recession can improve the people's quality of life

D.the flextime can satisfy people's needs

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第6题

The Foundation believes that the synthetic nose can be used to detect food spoilage and warn ______.

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第7题

It is commonly believed in the United States that school is where people go to get an education. Nevertheless, it has been said that today children interrupt their education to go to school. The distinction between schooling and education implied by this remark is important.

Education is much more open-ended and all-inclusive than schooling. Education knows no bounds. It can take place anywhere, whether in the school or on the job, whether in a kitchen or on a tractor. It includes both the formal learning that takes place .in schools and the whole universe of informal learning. The agents of education can range from a revered grandparent to the people debating politics on the radio, from a child to a distinguished scientist. Whereas schooling has a certain predictability, education quite of- ten produces surprises. A chance conversation with a stranger may lead a person to discover how little is known about a religion. People are engaged in education from infancy on. Education, then, is a very broad, inclusive term. It is a lifelong process, a process that starts long before the start of school, and one that should be an integral part of one's entire life.

Schooling, on the other hand, is a specific, formalized process, whose genera] pattern varies little from one setting to the next. Throughout a country, children arrive at school at approximately the same time, take assigned seats, are taught by an adult, use similar textbooks, do homework, take exams, and so on. The slices of reality that are to be learned, whether they are the alphabet or an understanding of the workings of government, have usually been limited by the boundaries of the subject being taught. For example, high school students know that they arc not likely to find out in their classes the truth about political problems in their communities or what the newest filmmakers are experimenting with. There are definite conditions surrounding the formalized process of schooling.

What is the main idea of the passage?

A.The best schools teach a wide variety of subjects.

B.Education and schooling are quite different experiences.

C.Students benefit from schools, which require long hours and homework.

D.The more years students go to school the better their education is.

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第8题

听力原文: It is commonly believed in the United States that school is where people go to get an education. Nevertheless, the distinction between schooling and education implied a lot.

Education is much more open-ended and all-inclusive than schooling. It can take place anywhere, whether in the shower or in the job. It includes both the formal learning that takes place in schools and the whole universe of informal learning. The agents of education can range from a revered grandparent to the people debating politics on the radio, from a child to a distinguished scientist. Whereas schooling has a certain predictability, education quite often produces surprises. A chance conversation with a stranger may lead a person to discover how little is known of other religions. People are engaged in education from infancy on. Education, then, is a very broad, inclusive term. It is a lifelong process, a process that starts long before the start of school, and one that should be an integral part of one's entire life.

Schooling, on the other hand, is a specific, formalized process, whose general pattern varies little from one setting to the next. Throughout a country, children arrive at school at approximately the same time, take as- signed seats, are taught by an adult, use similar textbooks, do homework, take exams, and so on. The slices of reality that are to be learned, whether they are the alphabet or an understanding of the working of government, have usually been limited by the boundaries of the subject being taught. For example, high school students know that they're not likely to find out in their classes the truth about political problems in their communities or what the newest filmmakers are experimenting with. There are definite conditions surrounding the formalized process of schooling.

(30)

A.At school.

B.At home.

C.In a community.

D.In a library.

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