单选题
单选题Even though we had been to her house several times before, we still did not remember ______.
单选题Being a foreigner, Cad did not ______ to the joke. A. appreciate B. catch on C. laugh D. like
单选题Shewasstaringoutoverthelake,lostin_______.
单选题Bill couldn't______an answer when the teacher asked him why he was late.
单选题The decline of traditional religion in the West has not removed the need for men and women to find a deeper meaning behind existence. Why is the world the way it is and how do we, as conscious individuals, fit into the great scheme?
There is a growing feeling that science, especially what is known as the new physics, can provide answers where religion remains vague and faltering. Many people in search of a meaning to their lives are finding enlightenment in the revolutionary developments at the frontiers of science. Much to the bewilderment of professional scientists, quasi-religious cults are being formed around such unlikely topic as quantum physics, space-time relativity, black holes and the big bang.
How can physics, with its reputation for cold precision and objective materialism, provide such fertile soil for the mystical? The truth is that the spirit of scientific enquiry has undergone a remarkable transformation over the past 50 years. The twin revolutions of the theory of relativity, with its space-warps and time-warps, and the quantum theory, which reveals the shadowy and unsubstantial nature of atoms, have demolished the classical image of a clockwork universe slavishly unfolding along a predetermined pathway. Replacing this sterile mechanism is a world full of shifting indeterminism and subtle interactions which have no counterpart in daily experience.
To study the new physics is to embark on a journey of wonderment and paradox, to glimpse the universe in a novel perspective, in which subject and object, mind and matter, force and field, become intertwined. Even the creation of the universe itself has fallen within the province of scientific enquiry.
The new cosmology provides, for the first time, a consistent picture of how all physical structures, including space and time, came to exist out of nothing. We are moving towards and understanding in which matter, force, order and creation are unified into a single descriptive theme.
Many of us who work in fundamental physics are deeply impressed by the harmony and order which pervades the physical world. To me the laws of the universe, from quarks to quasars, dovetail together so felicitously that the impression there is something behind it all seems overwhelming. The laws of physics are so remarkably clever that they can surely only be a manifestation of genius.
单选题These charming girls are the ______ of equal pay for men and women.
单选题 1
summary of the physical and chemical
2
of life must begin, not on the Earth, but
3
the Sun; in fact,
4
the Sun"s very center.
5
is here that is to be found the
6
of the energy that the Sun constantly
7
space
8
light and heat. This energy is liberated at the center of the Sun as billions upon billions of nuclei hydrogen atoms
9
each other and
10
to form nuclei of helium, and,
11
doing so,
12
some of the energy that is stored in the nuclei of atoms. The output of light and heat of the Sun
13
that some 600 million tons of hydrogen
14
helium in the Sun every second. This the Sun
15
for several thousands of millions of years.
单选题3 Kevin Rogers used to be my boss. At that time he was a hard-working, up-and-coming businessman and a real slave-driver, always telling us we had to sell more and more. As soon as I could, I got a job with another company. The last time I saw Rogers was more than ten years ago. At least that's what I thought until last Thursday. But now I'm not so sure. I was on my way back to my office in the center of town. There is a small park nearby which I sometimes walk through after lunch. It is empty, except for an unshaven, shabby looking man on one of the benches. He looked about fifty years old and was wearing an old, gray overcoat. It was a cold, wintry day, and he was shivering. "It's been a long time since I had a meal. Can you help me?" he said. There was some thing about his voice that sounded familiar. I gave him a few coins and he mumbled some thing about being grateful. As he stumbled past me, I looked at his face closely. I won dered where I had seen him before. Then it hit me. Could it possibly be...? No! Impossible, I thought. I watched him walking away. He was the same height as Rogers but looked a lot thinner than I remembered. Then, as he left the park and turned down the street, I caught sight of his face again, this time in profile. The nose was the same as Rogers', too. I al most followed him but something made me stop. I just couldn't be sure. But the resem- blance was very close. Yesterday I ran into someone who had worked for Rogers at the same time I did, and had stayed on longer. I started telling him about the man I had seen in the park. For a mo ment I thought it was our old boss. The voice, the nose, and even the face were just like Rogers, but it couldn't have been. "Rogers must be the director of a big company by now," I said. My ex-colleague shook his head. "I thought you knew. " "Knew? Knew what? What are you talking about?" "Rogers was sent to prison six years ago. He's probably out by now. For all I know he's sleeping on park benches and begging money from passers-by. /
单选题The market has changed in character because now ______.
单选题5 Tests conducted at the University of Pennsylvania's Psychological Laboratory showed that anger is one of the most difficult emotions to detect from facial expression. Professor Dallas E. Buzby confronted 716 students with pictures of extremely angry persons and asked them to identify the emotion from facial expression. Only 2 percent made correct judgments. Anger was most frequently judged as "pleased. " And a typical reaction of a student with the picture of a man who was hopping mad was to classify his expression as either "bewildered", "quizzical", or simply "amazed" . Other students showed that it is extremely difficult to tell whether a man is angry or not just by looking at his face. The in vestigators found further that women are better at detecting anger from facial expression than men are. Paradoxically, they found that psychological training does not sharpen one's ability to judge a man's emotions by his expressions but appears actually to hinder it. For in the university tests, the more courses the subjects had taken in psychology, the poorer judgment scores he turned in.
单选题
Could the bad old days of economic
decline be about to return? Since OPEC agreed to supply-cuts in March, the price
of crude oil has jumped to almost $26 a barrel, up from less than$10 last
December. Tbis near-tripling of oil prices calls up scary memories of the 1973
oil shock, when prices quadrupled, and 1979-1980, when they also almost tripled.
Both previous shocks resulted in double-digit inflation and global economic
decline. So where are the headlines warning of gloom and doom this
time? The oil price was given another push up this week when
Iraq suspended oil exports. Strengthening economic growth, at the same time as
winter grips the northern hemisphere, could push the price higher still in the
short term. Yet there are good reasons to expect the economic
consequences now to be less severe than in the 1970s. In most countries the cost
of crude oil now accounts for a smaller share of the price of petrol than it did
in the 1970s. In Europe, taxes account for up to four-fifths of the retail
price, so even quite big changes in the price of crude have a more muted effect
on pump prices than in the past. Rich economies are also less
dependent on oil than they were, and so less sensitive to swings in the oil
price. Energy conservation, a shift to other fuels and a decline in the
importance of heavy, energy-intensive industries have reduced oil consumption.
Software, consultancy and mobile telephones use far less oil than steel or car
production. For each dollar of GDP ( in constant prices) rich economies now use
nearly 50% less oil than in 1973. The OECD estimates in its latest Economic
Outlook that, if oil prices averaged $22 a barrel for a full year, compared with
$13 in 1998, this would increase the oil import bill in rich economies by only
0.25% ~ 0.5% of GDP. That is less than one-quarter of the income loss in 1974 or
1980. On the other hand, oil-importing emerging economies—to which heavy
industry has shifted—have become more energy-intensive, and so could be more
seriously squeezed. One more reason not to lose sleep over the
rise in oil prices is that, unlike the rises in the 1970s, it has not occurred
against the background of general commodity-price inflation and global excess
demand. A sizable port/on of the world is only just emerging from economic
decline. The Economist's commodity price index is broadly unchanging from a year
ago. In 1973 commodity prices jumped by 70% , and in 1979 by almost
30%.
单选题Because Jenkins neither __________ nor defends either management or the striking workers, both aides admire his journalistic
单选题The integration of staff for training has led to a good exchange of ideas, greater enthusiasm, and higher staff______.(2003年中国科学院考博试题)
单选题 Physicians are clear that thyroid dysfunction is manifest in growing children in the form of mental and physical retardation.
单选题The manager tried to wave aside these issues as ______ details that would be settled later.
单选题The world is going through the biggest wave of mergers and acquisitions never witnessed. The process sweeps from hyperactive America to Europe and reaches the emerging countries with unsurpassed might. Many in these countries are looking at this process and worrying: "Won"t the wave of business concentration turn into an uncontrollable anti-competitive force?"
There"s no question that the big are getting bigger and more powerful. Multinational corporations accounted for less than 20% of international trade in 1982. Today the figure is more than 25% and growing rapidly. International affiliates account for a fast-growing segment of production in economies that open up and welcome foreign investment. In Argentina, for instance, after the reforms of the early 1990s, multinationals went from 43% to almost 70% of the industrial production of the 200 largest firms. This phenomenon has created serious concerns over the role of smaller economic firms, of national businessmen and over the ultimate stability of the world economy.
I believe that the most important forces behind the massive M&A wave are the same that underlie the globalization process: falling transportation and communication costs, lower trade and investment barriers and enlarged markets that require enlarged operations capable of meeting customer"s demands. All these are beneficial, not detrimental, to consumers. As productivity grows, the world"s wealth increases.
Examples of benefits or costs of the current concentration wave are scanty. Yet it is hard to imagine that the merger of a few oil firms today could recreate the same threats to competition that were feared nearly a century ago in the U.S., when the Standard Oil trust was broken up. The mergers of telecom companies, such as WorldCom, hardly seem to bring higher prices for consumers or a reduction in the pace of technical progress. On the contrary, the price of communications is coming down fast. In cars, too, concentration is increasing—witness Daimler and Chrysler, Renault and Nissan—but it does not appear that consumers are being hurt.
Yet the fact remains that the merger movement must be watched a few weeks ago, Alan Greenspan warned against the megamergers in the banking industry. Who is going to supervise, regulate and operate as lender of last resort with the gigantic banks that are being created? Won"t multinationals shift production from one place to another when a nation gets too strict about infringements to fair competition? And should one country take upon itself the role of "defending competition" on issues that affect many other nations, as in the U.S. vs. Microsoft case?
单选题Beer is the most popular drink among male drinkers,______overall consumption is significantly higher than that of women.(中南大学2006年试题)
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单选题I don' t believe such a strange story. I am certain it is a complete______.
