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[主观题]

Over the past twenty years, personal computers have brought tremendous changes to th

Over the past twenty years, personal computers have brought tremendous changes to the home and the workplace, and many of the most important developments in computer technology are based on lasers.

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发布时间：2022-07-15

更多“ Over the past twenty years, personal computers have brought tremendous changes to th”相关的问题

第1题

However, because of recent changes in coffee production and marketing, shade coffee p

However, because of recent changes in coffee production and marketing, shade coffee plantations are a threatened habitat. In the past twenty years, coffee has begun to be grown with no shade canopy at all While this manner of cultivation produces increased yields, these cannot be kept for many years without intensive management (additions of chemical fertilizers and a range of insecticides, herbicides and fungicides).

The Topic：()

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第2题

On an average of six times a day, a doctor in Holland practices "active" euthanasia: inten

tionally administering a lethal (致死的) drug to a terminally ill patient who has asked to be relieved of suffering. Twenty times a day, life-prolonging treatment is withheld or withdrawn when there is no hope that it can effect an ultimate cure. "Active" euthanasia remains a crime on the Dutch statute books, punishable by 12 years in prison. But a series of court cases over the past 15 years has made it clear that a competent physician who carries it out will not be prosecuted.

Euthanasia, often called "mercy killing" is a crime everywhere in Western Europe. But more and more doctors and nurses readily admit to practicing it, most often in the "passive" form. of withholding or withdrawing treatment. The long simmering euthanasia issue has lately boiled over into a, sometimes, fierce public debate, with both sides claiming the mantle of ultimate righteousness. Those opposed to the practice see themselves upholding sacred principles of respect for life, while those in favor raise the banner of humane treatment. After years on the defensive, the advocates now seem to be gaining ground. Recent polls in Britain show that 72 percent of British subjects favor euthanasia in some circumstances. An astonishing 76 percent of respondents to a poll taken last year in France said they would like the law changed to decriminalize mercy killings.

Euthanasia has been a topic of controversy in Europe since at least 1936, when a bill was introduced in the House of Lords that would have legalized mercy killing under very tightly supervised conditions. That bill failed, as have three others introduced in the House of Lords since then.

Reasons for the latest surge of interest in euthanasia are not hard to find. Europeans, like Americans, are now living longer. Therefore, lingering chronic diseases have replaced critical illnesses as the primary cause of death. And the euthanasists argue that every human being should have the right to "die with dignity," by which they usually mean the right to escape the horrors of a painful or degrading hospitalization (住院治疗).

Most experts believe that euthanasia will continue to be practiced no matter what the law says.

From the passage we can see that in Holland ______.

A．a doctor who practices euthanasia will not be punished

B．euthanasia is regarded as illegal

C．euthanasia is very popular

D．active euthanasia is still illegal, but people often tolerate an experienced doctor who carries it out

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第3题

But over the past decade, graffiti has all but disappeared from Britain's cities.(

But over the past decade, graffiti has all but disappeared from Britain's cities.（

翻译)

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第4题

There is evidence that man is changing: ______.A．man has been growing taller over the past

There is evidence that man is changing: ______.

A．man has been growing taller over the past 500 years

B．man has got stronger eyes than he ever had

C．man's hair is getting thinner and thinner

D．man's limbs are getting weaker because he tends to make less use of them

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第5题

What is said about the over 100 aircraft incidents in the past 15 years？A．They may have be

What is said about the over 100 aircraft incidents in the past 15 years？

A．They may have been caused by the damage to the radio systems.

B．They may have taken place during take - off and landing.

C．They were proved to have been caused by the passengers' portable computers.

D．They were suspected to have resulted from electromagnetic interference.

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第6题

What is said about the over l00 aircraft incidents in the past 15 years？A.They may have be

What is said about the over l00 aircraft incidents in the past 15 years？

A.They may have been caused by the damage to the radio system．

B.They may have taken place during take-off and landing．

C.They were proved to have been caused by the passengers’portable computers．

D.They were suspected to have resulted from electromagnetic interference．

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第7题

Riding on his bicycle. he'd ride past my dorm as if "by accident" and （) t

Riding on his bicycle. he'd ride past my dorm as if "by accident" and () to be surprised to see me. I liked the attention but was () about his wild, dynamic ().He had a charming waywith words which would () any girl. Fear came over me when I started to fall in love. Hisexciting "bad boy image" was just too () to resist. What was it that () me？ I always hadan excellent reputation. My () was solely on my studies to get superior grades. But for what？College is () to be a time of great learning and also some fun. I had nearly achieved a greateducation, and graduation was just one semester away. But I hadn't had any fun; my life was () with no component of fun! I needed a boyfriend Not just any boyfriend. He had to becute. My goal that semester became:Be () and grab the cutest boyfriend I can find.

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第8题

To swim across the English Channel takes at least nine hours. It' s a hard work and it mak

es you short of breath. To fly over the Channel takes only twenty minutes (as long as you' re not held up at the airport), but it' s an expensive way to travel. You can travel by hovercraft if you don' t mind the noise, and that takes forty minutes. Otherwise you can go by boat, if you forget your sea-sickness ills. All these means of transport have their problems and the weary(不耐烦的) traveler often dreams of being able to drive to France in his own car. "Not possible", you say. Well, wait a minute. People are once again considering the idea of a Channel tunnel or bridge.

This time, the Greater London Council is looking into the possibility of building a Channel link straight to London. (79) A bridge would cost far more than a tunnel, but you would be able to go by rail or by car on a bridge, whereas a tunnel would provide a rail link only.

Why is this idea being discussed again？ Is Britain becoming more conscious of the need for links with Europe as a result of joining the EEC(欧共体) ？ Well, perhaps. The main reason, though, is that a tunnel or bridge would reach the twenty square kilometers of London' s disused dockland(船坞地). A link from London to the continent would stimulate trade and re-vitalize(使…各新有活力) the port, and would make London a main trading center in Europe. (80)With a link over the Channel, you could buy your fish and chips in England, and be able to eat them in France while they were still warm!

Which of the following statements is TRUE？

A．Swimming across the Channel takes less than four hours.

B．The idea of a Channel tunnel or bridge is a very new one.

C．It is considered to be more difficult to swim across the channel than any other means.

D．A tunnel or bridge would only reach as far as the coast.

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第9题

根据以下内容，回答下列各题。 In the old days, divers used to go down into the sea looking f

or ships that had sunk, because they hoped to find gold and jewels．Now divers still search for valuable things in sunken ships, but they also try to bring to the surface the ships themselves, or parts of them．The value of different kinds of metals has increased greatly over the last twenty or thirty years and even though a ship has been under the sea for many years, it may be worth a great deal． One famous sunken ship is the “Lusitania”, which sank off the southern coast of Ireland in 1915 with a loss of nearly, 1,500 lives．It has four huge propellers made of an expensive metal．Today each of those propellers is worth $ 300,000 or more．The ship lying on the sea-bed has been brought by a man called John Light．He paid about $ 1,200,000 for the whole ship．He hopes to bring up those propellers and sell them．He also hopes to sell other parts of the ship, when he has brought them to the surface, for about $ 600,000． Divers today try to bring to the surface _______．

A.gold and jewels

B.parts of ships

C.whole ships

D.all of the above

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第10题

The differences in living standards around the world are vast In 1993, the average America

n had an income of about ＄25,000. In the same year, the average Mexican earned $7,000, and the average Nigerian earned. ＄1,500. Not surprisingly, this large variation in average income is reflected in various measures of the quality of life. Changes in living standards over time are also large. In the United States, incomes have historically grown about 2 percent per year (after adjusting for changes in the cost of living). At this rate, average income doubles every 35 years. In some countries, economic growth has been even more rapid. In Japan, for instance, average income has doubled in the past 20 years, and in South Korea it has doubled in the past 10 years.

What explains these large differences in living standards among countries and over time？ The answer is surprisingly simple. Almost all variation in living standards is attributable to differences in countries' productivity—hat is, the amount of goods and services produced from each hour of a worker's time. In nations where workers can produce a large quantity of goods and services per unit of time, most people enjoy a high standard of living; in nations where workers are less productive, most people must endure a more meager existence. Similarly, the growth rate of a nation's productivity determines the growth rate of its average income.

The fundamental relationship between productivity and living standards is simple, but its implications are far-reaching. If productivity is the primary determinant of living standards, other explanations must be of secondary importance. For example, people might think that labor unions or minimum-wage laws contributed to the rise in living standards of American workers over the past century. Yet the real hero of American workers is their rising productivity.

The relationship between productivity and living standards also has great implications for public policy. When thinking about how any policy will affect living standards, the key question is how it will affect our ability to produce goods and services. To improve living standards, policymakers need to raise productivity by ensuring that workers are well educated, have the tools needed to produce goods and services, and have access to the best available technology.

Which of the following countries has enjoyed the fastest economic growth in history？

A．Mexico.

B．The United States.

C．Japan.

D．South Korea.

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