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[主观题]

Randomly selected 100 children in the 5-year-old group for immunization prevention trial, followed up for 8 years, the results showed that 70% of immunized patients did not suffer from the disease of

A、The vaccine is effective because 70% of children do not have the disease

B、The vaccine is ineffective because 30% of children have the disease

C、Can't conclude because there is no statistical test

D、Can't conclude because the observation time is not long enough

E、Can't conclude because there is no control group

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更多“Randomly selected 100 children in the 5-year-old group for immunization prevention trial, followed u…”相关的问题

第1题

One answer to the question of land shortage was suggested by an organization some years ago. A city was to be built at sea, housing 30,000 people.

The suggestion was to shape the city like a harbor (港口). The outer wall of the harbor would stand on steel columns resting on the seabed. Naturally this could only be where the water was fairly shallow. The people would like to live in flats in the fifty-metre high outer wall. The flats would be all face inwards, and would be made of concrete (混凝土) and glass. The glass would be specially made and colored to control the heat and strong light from the sun. The planners called this man-made harbor would be calm. On it would be floating islands carrying more buildings: a hospital, two theaters, a museum, an art exhibition hall and a church. On one of the islands would be a special factory to take the salt out of sea water and turn it into fresh water.

People living in the city could move around on small boats driven by electricity, so there would be no air pollution from the burning of gas. There would be platforms outside the man wall for ships bringing supplies. People could also travel to the mainland by motorboat or water plane.

What was suggested about the construction of a new city at sea?

A.The city was to be designed together with a harbor.

B.The walls around the city would be made of steel and glass.

C.The building of the city would rest on a floating island.

D.The people would live in tall buildings surrounded by a wall.

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第2题

COne answer to the question of land shortage was suggested by an organization some years ago. A city was to be built at sea, housing 30,000 people.

The suggestion was to shape the city like a harbor (港口) 。The outer wall of the harbor would stand on steel columns resting on the sea--bed. Naturally this could only be where the water was fairly shallow. The people would like to live in flats in the fifty-metre high outer wall. The flats would be all face inwards, and would be made of concrete (混泥土) and glass. The glass would be specially made and colored to control the heat and strong light from the sun. The planners called this man--made harbor would be calm. On it would be floating islands carrying more building: a hospital, two theaters, museum, an art exhibition hall and a church. On one of the islands would be a special factory to take the salt out of sea water and turn it into fresh water.

People living in the city could move around on small boats driven by electricity, so there would be no air pollution from the burning of gas. There would be platforms outside the man wall for ships bringing supplies. People could also travel to the mainland by motorboat or water plane.

第43题:What was suggested about the construction of a new city at sea?

[A] The city was to be designed together with a harbor.

[B] The walls around the city would be made of steel and glass.

[C] The building of the city would rest on a floating island.

[D] The people would live in tall building surrounded by a wall.

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第3题

Why does Charles E. Morrison say APEC "is not an organization really structured for action "?

A.Because all member countries have to follow its decisions.

B.Because its member countries can easily break their promises at the forum without taking any responsibility.

C.Because it concentrates on ideological problems.

D.Because too many countries are in the organization.

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第4题

In the future trade the key development to watch is the relationship between the industrialized and the developing nations. The【C1】______World Countries export their mineral【C2】______and some agricultural products, which bring them【C3】______foreign exchange. Tourism has also been greatly responsible【C4】______the rapid development of some【C5】______nations. Many Third World nations with high【C6】______and low wages have seen an emigration of workers【C7】______the developed nations. Western Europe has【C8】______millions of such workers from Mediterranean countries. The developing nations profit【C9】______these workers bring their savings and their acquired technical skills【C10】______home. Many developing nations benefit when Western nations【C11】______manufacturing factories in their countries to take【C12】______of cheap labor.

【C13】______economies mature, economic growth rates tend to level off. The rate of【C14】______growth is leveling off today in Western nations. This leveling off【C15】______leads to static non-growth markets. A point of saturation (饱和)【C16】______technology and innovation have seemed to achieve the impossible,【C17】______then how much further can it go ? Herman Kahn,【C18】______his book The Next 200 Years, says that a shift in priorities will have to occur for industrialized nations.【C19】______is the creation of quality and jobs essential;【C20】______is rather the improvement of the quality of life that must be our concern.

【C1】

A.First

B.Second

C.West

D.Third

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第5题

In 1896 a Georgia couple suing for damages in the

accidental death of their two year old was told that since

the child had made no real economic contribution to the

family, there was no liability for damages. In contrast,

(5) less than a century later, in 1979, the parents of a three

year old sued in New York for accidental-death damages

and won an award of $750,000.

The transformation in social values implicit in juxta-

posing these two incidents is the subject of Viviana

(10) Zelizer’s excellent book, Pricing the Priceless Child.

During the nineteenth century, she argues, the concept

of the “useful” child who contributed to the family

economy gave way gradually to the present-day notion

of the “useless” child who, though producing no income

(15) for, and indeed extremely costly to, its parents, is yet

considered emotionally “priceless.” Well established

among segments of the middle and upper classes by the

mid-1800’s, this new view of childhood spread through-

out society in the iate-nineteenth and early-twentieth

(20) centuries as reformers introduced child-labor regulations

and compulsory education laws predicated in part on the

assumption that a child’s emotional value made child

labor taboo.

For Zelizer the origins of this transformation were

(25) many and complex. The gradual erosion of children’s

productive value in a maturing industrial economy,

the decline in birth and death rates, especially in child

mortality, and the development of the companionate

family (a family in which members were united by

(30) explicit bonds of love rather than duty) were all factors

critical in changing the assessment of children’s worth.

Yet “expulsion of children from the ‘cash nexus,’...

although clearly shaped by profound changes in the

economic, occupational, and family structures,” Zelizer

(35) maintains. “was also part of a cultural process ‘of sacral-

ization’ of children’s lives. ” Protecting children from the

crass business world became enormously important for

late-nineteenth-century middle-class Americans, she

suggests; this sacralization was a way of resisting what

(40) they perceived as the relentless corruption of human

values by the marketplace.

In stressing the cultural determinants of a child’s

worth. Zelizer takes issue with practitioners of the new

“sociological economics,” who have analyzed such tradi-

(45) tionally sociological topics as crime, marriage, educa-

tion, and health solely in terms of their economic deter-

minants. Allowing only a small role for cultural forces

in the form. of individual “preferences,” these sociologists

tend to view all human behavior. as directed primarily by

(50) the principle of maximizing economic gain. Zelizer is

highly critical of this approach, and emphasizes instead

the opposite phenomenon: the power of social values to

transform. price. As children became more valuable in

emotional terms, she argues, their “exchange” or “ sur-

(55) render” value on the market, that is, the conversion of

their intangible worth into cash terms, became much

greater.

It can be inferred from the passage that accidental-death damage awards in America during the nineteenth century tended to be based principally on the______

A.earnings of the person at time of death

B.wealth of the party causing the death

C.degree of culpability of the party causing the death

D.amount of money that had been spent on the person killed

E.amount of suffering endured by the family of the person killed

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第6题

听力原文:Globalization and the liberalization that produced it have generated a sustained period of economic expansion, together with the most rapid reconfiguration of international economic geography ever. Unprecedented wealth and standards of living exist in the industrialized world.Elsewhere, some countries that struggled with poverty a mere generation ago are now economic poles in their own right. Over the course of the next generation, a majority of the world's most rapidly growing economies will be located in what is now the developing world.

According to the passage, which of the following is NOT the result of globalization and liberalization?

A.The gap between the developed and the developing countries has widened

B.The industrialized world has witnessed unprecedented wealth.

C.The wealth of the world has been redistributed

D.The current developing countries will become the most rapidly rowing economies.

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第7题

听力原文:Globalization and the liberalization that produced it have generated a sustained period of economic expansion, together with the most rapid reconfiguration of international economic geography ever. Unprecedented wealth and standards of living exist in the industrialized world.Elsewhere, some countries that struggled with poverty a mere generation ago are now economic poles in their own right. Over the course of the next generation, a majority of the world's most rapidly growing economies will be located in what is now the developing world.

According to the passage, which of the following is NOT the result of globalization and liberalization?

A.The gap between the developed and the developing countries has widened

B.The industrialized world has witnessed unprecedented wealth.

C.The wealth of the world has been redistributed

D.The current developing countries will become the most rapidly rowing economies.

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