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【C9】A．in a wordB．by the wayC．in other wordsD．in addition

【C9】

A．in a word

B．by the way

C．in other words

D．in addition

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更多“【C9】A．in a wordB．by the wayC．i…”相关的问题

第1题

【C9】A．In any caseB．In caseC．In case ofD．In this case

【C9】

A．In any case

B．In case

C．In case of

D．In this case

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第2题

【C9】A．in case ofB．on behalf ofC．for the sake ofD．because of

【C9】

A．in case of

B．on behalf of

C．for the sake of

D．because of

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第3题

【C9】A．inB．withC．onD．at

【C9】

A．in

B．with

C．on

D．at

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第4题

【C9】A．InB．OnC．ToD．At

【C9】

A．In

B．On

C．To

D．At

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第5题

【C9】A．in whichB．with whichC．for whichD．of which

【C9】

A．in which

B．with which

C．for which

D．of which

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第6题

The key to the industrialization of space is the U. S. space shuttle.【C1】______it, astrona

uts will acquire a workhouse vehicle【C2】______of flying into space and returning many times. 【C3】______by reusable rockets that can lift a load of 65 000 pounds, the shuttle will carry devices for scientific inquiry, as well as a variety of military hardware. 【C4】______more significantly, it will deliver materials and machines into space for industrial purposes【C5】______two decades ago when "sputnik" (artificial satellite) was added to the vocabulary. In short, the【C6】______importance of the shuttle lies in its promise as an economic tool. What makes the space shuttle【C7】______is that it takes off like a rocket but lands like an air-plane. 【C8】______when it has accomplished its mission, it can be ready for【C9】______trip in about two weeks. The space shuttle, the worlds first true spaceship, is a magnificent step【C10】______making the impossible possible for the benefit and survival of man.

【C1】

A．In

B．On

C．By

D．With

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第7题

The difference between a liquid and a gas is obvious【C1】______the conditions of temperatur

e and pressure commonly found【C2】______of the Earth. A liquid can be kept in an open container and【C3】______it to the level of a free surface. A gas forms no free surface but【C4】______to diffuse throughout the space available; it must【C5】______be kept in a closed container, as【C6】______a planet's atmosphere. The distinction was a【C7】______feature of early theories【C8】______the phases of matter. In the nineteenth century, for example, one theory maintained that a liquid could be "dissolved" in a vapor without losing its identity, and another theory held that the two phases are【C9】______different kinds of molecules(分子). The theories now prevailing【C10】______a quite different approach by emphasizing.【C11】______liquids and gases have in common. They are both forms of matter that have no permanent structure, and they both【C12】______easily. They are fluids.

The【C13】______similarity of liquids and gases becomes clearly apparent when the temperature and pressure are raised somewhat.【C14】______a closed container partially filled with a liquid is heated. The liquid expands, or【C15】______, becomes less dense; some of it evaporates.【C16】______, the vapor above the liquid surface becomes denser as the evaporated molecules are【C17】______it. The combination of temperature and pressure【C18】______the densities become equal is【C19】______the critical point. Above the critical point the liquid and the gas can no longer be【C20】______; there is a single, undifferentiated fluid phase of uniform. density.

【C1】

A．in

B．on

C．under

D．beyond

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第8题

Education is not an end, but a means to an end. In other words, we do not educate children

only for the purpose of educating them; our purpose is to fit them for life.【C1】______we realize this fact, we will understand that it is very important to【C2】______a system of education which will really prepare children for life.

In many modern countries it has【C3】______been accepted that, by free education for all-whether rich or poor, clever or stupid-we can solve【C4】______of society and build a【C5】______nation. But we can already see that free education for all is not【C6】______: we find in such countries【C7】______people with university degrees than【C8】______jobs for them to do. Because of their degrees, they refuse to do what they think "low" work.

But we have only to think for a moment to understand that the work of a completely uneducated【C9】______is far more important than【C10】______we can live【C11】______education, but we【C12】______ if we have no food. If no one cleaned our streets and took the【C13】______away from our houses, we【C14】______terrible diseases in our towns.

In fact,【C15】______we say that all of us must be educated to fit us for life, it means that we must be educated【C16】______that each of us can do whatever job【C17】______him, and that we can realize that all jobs are【C18】______to society, and that it is very bad to be ashamed to do one's work, or to laugh at【C19】______. Only such a type of education can be【C20】______valuable to society.

【C1】

A．In order that

B．Before

C．As soon as

D．Though

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第9题

Some people feel sad or depressed during the winter months in northern areas of the world.

They may have trouble eating or sleeping. They suffer【C1】______a condition known as Seasonal Affective Disorder, or SAD.

【C2】______of SAD【C3】______its effects during the short, dark days of【C4】______. The problems are most【C5】______in the months when there are fewer hours of daylight. When spring arrives, these signs【C6】______and SAD victims feel【C7】______again.

The National Mental Health Association reports that SAD can【C8】______anyone. The group says young people and women are【C9】______the highest risk for the disorder. It says that an estimated twenty-five percent of the American population suffers from some form. of SAD. About five percent suffer from a severe form. of the【C10】______.【C11】______, many people in other parts of the world also have the condition.

To treat the disorder, victims of SAD do not need to wait until【C12】______. Experts know that【C13】______affected individuals【C14】______bright light each day【C15】______the condition.【C16】______, there are other things people can do to ease the problem. They can【C17】______the sunlight in their homes and workplaces. They can spend【C18】______time outdoors in the fresh air during the day.

One study found that walking for an hour in winter sunlight was as【C19】______as spending two-and-one-half hours in【C20】______light indoors.

【C1】

A．in

B．from

C．at

D．with

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