单选题-Do you think Joshua is the right person for this job? -He is well-grounded in economic theory, but lacks_____in production management.

单选题When taken in large quantities some drugs can cause {{U}}permanent{{/U}} brain damage.

单选题The award ceremony will be the ______ of the inaugural Singapore International Water Week that is held from 23 to 27 June 2008. (2008年北京大学考博试题)

单选题War has escaped the battlefield and now can, with modern guidance systems on missiles, touch virtually every square yard of the earth"s surface. It no longer involves only the military profession, but also entire civilian populations. Nuclear weapons have made major war unthinkable. We are forced, however, to think about the unthinkable because a nuclear war could come by accident or miscalculation. We must accept the paradox of maintaining a capacity to fight such a war so that we will never have to do so. War has also lost most of its utility in achieving the traditional goals of conflict. Control of territory carries with it the obligation to provide subject peoples certain administrative, health, education, and other social services; such obligations far outweigh the benefits of control. If the ruled population is ethnically or racially different from the rulers, tensions and chronic unrest often exist which further reduce the benefits and increase the costs of domination. Large populations no longer necessarily enhance state power and, in the absence of high levels of economic development, can impose severe burdens on food supply, jobs, and the broad range of services expected of modern governments. The benefits of forcing another nation to surrender its wealth are vastly outweighed by the benefits of persuading that nation to produce and exchange goods and services. Making war has been one of the most persistent of human activities in the 8 centuries since men and women settled in cities and became thereby "civilized", but the modernization of the past 80 years has fundamentally changed the role and function of war. In pre-modernized societies, successful warfare brought significant material rewards, the most obvious of which were the stored wealth of the defeated. Equally important was human labor—control over people as slaves—and the productive capacity of agricultural lands and mines. Warfare was also the most complex, broad-scale and demanding activity of premodernized people. The challenges of leading men into battle, organizing, moving and supporting armies, attracted the talents of the most vigorous, enterprising, intelligent and imaginative men in the society. "Warrior" and "statesman" were usually synonymous, and the military was one of the few professions in which an able, ambitious boy of humble origin could rise to the top. In the broader cultural context, war was accepted in the premodernized society as a part of the human condition, a mechanism of change, and an unavoidable, even noble, aspect of life. The excitement and drama of war made it a vital part of literature and legends.

单选题Give the message to ______ is at the table. A．whomever B．whosever C．whatever D．whoever

单选题Speaker A: I think I'm coming down with something. Speaker B:______

单选题Speaker A: Sorry for being late. You see, I was held up by the traffic. Speaker B: ______ A. Oh, it's quite all right. Forget it! B. I also find the traffic very heavy during the rush hours. C. Yes, the traffic jam is more serious than before. D. Not at all. You can come anytime.

单选题There is no denying that students should learn something about how computers work, just as we expect them at least to understand that the internal combustion engine (内燃机) has something to do with burning fuel, expanding gases and pistons (活塞) being driven. For people should have some basic idea of how the things that they use do what they do. Further, students might be helped by a course that considers the computer's impact on society. But that is not what is meant by computer literacy. For computer literacy is not a form of literacy (读写能力) ; it is a trade skill that should not be taught as a liberal art. Learning how to use a computer and learning how to program one are two distinct activities, A case might be made that the competent citizens of tomorrow should free themselves from their fear of computers. But this is quite different from saying that all ought to know how to program one. Leave that to people who have chosen programming as a career. While programming can be lots of fun, and while our society needs some people who are experts at it, the same is true of auto repair and violin-making. Learning how to use a computer is not that difficult, and it gets easier all the time as programs become more "user-friendly" . Let us assume that in the future everyone is going to have to know how to use a computer to be a competent citizen. What does the phrase "learning to use a computer" mean? It sounds like "learning to drive a car", that is, it sounds as if there is some set of definite skills that, once acquired, enable one to use a computer. In fact, "learning to use a computer" is much more like "learning to play a game", but learning the rules of one game may not help you play a second game, whose rules may not be the same. There is no such a thing as teaching someone how to use a computer. One can only teach people to use this or that program and generally that is easily accomplished.

单选题{{B}}Passage Two{{/B}} Regardless of the source or kind of light, the ability of light to form an image is dependent upon just one thing--a small hole or a lens to bring the rays to a focus. The principle of image formation was discovered in early Greek Times. Later it was realized that the eye itself has a lens and that an image is, in fact, formed on the retina, the rear inside surface of the eyeball. Some man inside a cave or a darkened room noticed that light entering through a small hole in the wall formed an image on the far wall. It was observed that if you enlarge the hole, the image blurred and disappeared. On the other hand, the smaller the hole, the sharper the image-down to a certain diameter after which making the hole smaller makes the image worse again. The function of a pinhole is to screen out all light rays except those coming in a perfectly straight line from the object, thus improving the sharpness of the image. After passing through a point the rays again spread out a little bit, and the size of the image formed will depend upon how far back the wall, screen, or film is from the pinhole. The full exploitation of this phenomenon had to wait for the development of the lens, which gathered in a much larger number of light rays and still brought them to form an image, just as the pinhole did, but with a difference: in a pinhole camera, the light rays form an image that is equally sharp regardless of the distance to the film. When a lens is used, there may be a choice of planes of focus determined by adjusting the lens-to-film distance. Each plane is located some distance behind and relatively parallel to the lens. Actual blown glass was developed early in Egyptian times, and the first lens may have been the bottom of a wine bottle. However, the first deliberate grinding of lenses did not take place until the thirteenth century, and the art did not become established until the sixteenth century. A book on the grinding and polishing of lenses was issued by B. Battista della Porta in 1589, but it was not until 1611 that Kepler compared a lens of glass to the lens in the eye and showed that rays from each point of an object were brought to a focus at each corresponding point of an image on the retina. Then, in 1619, Scheiner demonstrated the actual formation of an inverted image on the retina.

单选题You (will not able) to pass the examination (unless) you work (harder) than you (do) now. A. will not able B. unless C. harder D. do

单选题Everyone has heard of the San Andreas fault, which constantly threatens California and the West Coast with earth- quakes. But how many people know about the equally serious New Madrid fault in Missouri.'? Between December of 1811 and February of 1812, three major earthquakes occurred, all centered around the town of New Madrid, Missouri, on the Mississippi River. Property damage was severe. Buildings in the area were almost dest oyed. Whole forests fell at once, and huge cracks opened in the ground, allowing smell of sulfur to filter upward. The Mississippi River itself completely changed character, developing sudden rapids and whirlpools. Several times it changed its course, and once, according to some observers, it actually appeared to run backwards. Few people were killed in the New Madrid earthquakes, probably simply because few people lived in the area in 1811; but the severity of the earth- quakes are shown by the fact that the shock waves rang bells in church towers in Charleston, South Carolina, on the coast. Buildings shook in New York City, and clocks were stopped in Washington D.C. Scientists now know that America's two major faults are essentially different. The San Andreas is a horizontal boundary between two major land masses that are slowly moving in opposite directions. California earthquakes result when the movement of these two masses suddenly lurches forward. The New Madrid fault, on the other hand, is a vertical fault; at some point, possibly hundreds of millions of years ago, rock was pushed up toward the surface, probably by volcanoes under the surface. Suddenly, the volcanoes cooled and the rock collapsed, leaving huge cracks. Even now', the rock continues to settle downwards, and sudden sinking motions trigger earthquakes in the region. The fault itself, a large crack in this layer of rock, with dozens of other cracks that split off from it, extends from northeast Arkansas through Missouri and into southern Illinois. Scientists who have studied the New Madrid fault say there have been numerous smaller quakes in the area since 1811; these smaller quakes indicate that larger ones are probably coming, but rite scientists say they have no method of predicting when a large earthquake will occur.

单选题Many Europeans ______ the continent of Africa in the nineteenth century.

单选题Well, no gain without pain, they say. But what about pain without gain? Everywhere you go in America, you hear tales of corporate revival. What is harder to establish is whether the productivity revolution that businessmen assume they are presiding over is for real. The official statistics are mildly discouraging. They show that, if you lump manufacturing and services together, productivity has grown on average by 1.2% since 1987. That is somewhat faster than the average during the previous decade. And since 1991, productivity has increased by about 2% a year, which is more than twice the 1978 - 1987 average. The trouble is that part of the recent acceleration is due to the usual rebound that occurs at this point in a business cycle, and so is not conclusive evidence of a revival in the underlying trend. There is, as Robert Rubin, the treasury secretary, says, a "disjunction" between the mass of business anecdote that points to a leap in productivity and the picture reflected by the statistics. Some of this can be easily explained. New ways of organizing the workplace--all that re-engineering and downsizing--are only one contribution to the overall productivity of an economy, which is driven by many other factors such as joint investment in equipment and machinery, new technology, and investment in education and training. Moreover, most of the changes that companies make are intended to keep them profitable, and this need not always mean increasing productivity: switching to new markets or improving quality can matter just as much. Two other explanations are speculative. First, some of the business restructuring of recent years may have been unsuitably done. Second, even if it was well done, it may have spread much less widely than people suppose. Leonard Schlesinger, a Harvard academic and former chief executive of Au Bon Pain, a rapidly growing chain of bakery cafes, says that much "re-engineering" has been crude. In many cases, he believes, the loss of revenue has been greater than the reductions in cost. His colleague, Michael Beer, says that far too many companies have applied re-engineering in a mechanistic fashion, chopping out costs without giving sufficient thought to long-term profitability. BBDO' s Al Rosen Shine is blunter. He dismisses a lot of the work of re-engineering consultants as mere rubbish—"the worst sort of ambulance-chasing./

单选题A. ontoB. monthC. longD. wrong

单选题In each accident the driver was ______.

单选题According to the passage, a good salesman is one who ______.

单选题The success of Augustus owed much to the character of Roman theorizing about the state. The Romans did not produce ambitious blueprints (1) the construction of ideal states, such as (2) to the Greeks. With very few exceptions, Roman theorists ignored, or rejected (3) valueless, intellectual exercises like Plato's Republic, in (4) the relationship of the individual to the state was (5) out painstakingly without reference to (6) states or individuals. The closest the Roman came to the Greek model was Cicero’s De Re Publiea, and even here Cicero had Rome clearly in (7) . Roman thought about the state was concrete, even when it (8) religious and moral concepts. The first ruler of Rome, Romulus, was (9) to have received authority from the gods, specifically from Jupiter, the "guarantor" of Rome. All constitutional (10) was a method of conferring and administering the (11) . Very clearly it was believed that only the assembly of the (12) , the family heads who formed the original senate, (13) the religious character necessary to exercise authority, because its original function was to (14) the gods. Being practical as well as exclusive, the senators moved (15) to divide the authority, holding that their consuls, or chief officials, would possess it on (16) months, and later extending its possession to lower officials. (17) the important achievement was to create the idea of continuing (18) authority embodied only temporarily in certain upper-class individuals and conferred only (19) the mass of the people concurred. The system grew with enormous (20) , as new offices and assemblies were created and almost none discarded.