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【C11】A．In additionB．HoweverC．ConsequentlyD．In contrast

【C11】

A．In addition

B．However

C．Consequently

D．In contrast

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更多“【C11】A．In additionB．HoweverC．C…”相关的问题

第1题

【C11】A．in generalB．on averageC．by contrastD．at length

【C11】

A．in general

B．on average

C．by contrast

D．at length

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第2题

A. In additionB. To the same extentC. In a wayD. In contrast

A. In addition

B. To the same extent

C. In a way

D. In contrast

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第3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4题

Fears of "mad cow" disease spread【C1】______ the globe last week【C2】______ South Mrica, New

Zealand and Singapore joining most of Britain's European Union partners in【C3】______ imports of British beef. In London, steak restaurants were empty following the March 20 announcement by scientists that they had found a【C4】______ link between mad cow disease from British beef and its human【C5】______ , Creutzfeldt-Jakob disease (CJD).

Efforts to reassure consumers and governments proved【C6】______ . France, Germany, Italy, Finland and Greece were among countries which announced bans【C7】______ British beef shipments.

A committee of EU veterinary experts, meeting in Brussels,【C8】______ new protective measures but said transmission of the disease from cattle to humans was unproven and did not【C9】______ a general ban on British beef exports. Britain's own main consumer group advised people to【C10】______ beef if they wanted to be absolutely sure of not【C11】______ CJD which destroys the brain and is always【C12】______

"Could it be worse than AIDS？"

The stark headline in Friday's Daily mail newspaper encapsulated the fear and uncertainty【C13】 Britain. CJD【C14】______ humans in the same way that BSE makes cows mad--by eating away nerve cells in the brain【C15】______ it looks like a spongy Swiss cheese.

The disease is incurable. Victims show【C16】______ of dementia and memory loss and usually die【C17】______ six months.

Little is known【C18】______ sure about the group of diseases known collectively as spongiform. encephalopathies, which explains【C19】______ some eminent scientists are not prepared to【C20】______ a human epidemic of AIDS-like proportions.

【C1】

A．in

B．on

C．over

D．around

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第5题

【C11】

A.entertain

B.encourage

C.educate

D.edit