单选题Comedian George Carlin has a routine in which he talks about how humans seem to spend their lives accumulating "stuff". Once they"ve gathered enough stuff, they have to find places to store all of it. If Carlin were to update that routine today, he could make the same 1 about computer information. It seems that everyone with a computer spends a lot of time acquiring data and then trying to find a way to 2 it. For some computer owners, finding enough storage space to hold all the data they"ve acquired is a real challenge. Some people invest in larger hard drives. Others prefer 3 storage devices like thumb drives or compact discs. Desperate computer owners might delete entire folders worth of old files in order to make space for new information. 4 some are choosing to rely on a growing trend: cloud storage. While cloud storage sounds like it has something to do with weather 5 and storm systems, it really refers to saving data 6 an off-site storage system maintained by a third party. 7 storing information to your computer"s hard drive or other local storage device, you save it to a remote database. The Internet provides the connection between your computer and the database. On the surface, cloud storage has several advantages 8 traditional data storage. For example, if you store your data on a cloud storage system, you"ll be able to get to that data from any location that has Internet access. You 9 need to carry around a 10 storage device or use the same computer to save and 11 your information. With the right storage system, you could even allow other people to access the data, turning a personal project into a 12 effort. So cloud storage is convenient and offers more 13 , but how does it work? There are hundreds of different cloud storage systems. Some have a very specific 14 , such as storing Web e-mail messages or digital pictures. Others are 15 to store all forms of digital data. Some cloud storage systems are small operations, while others are so large that the physical equipment can fill 16 an entire warehouse. The facilities that 17 loud storage systems are called data centers. At its most basic level, a cloud storage system needs just one data server 18 to the Internet. A client e. g. , a computer user subscribing to a cloud storage service sends copies of files over the Internet to the data server, which then records the information. When the client wishes to retrieve the information, he or she accesses the data server through a Web-based interface. The server then either sends the files back to the client or allows the client to access and manipulate the files on the server itself. Cloud storage systems generally rely on hundreds of data servers. Because computers 19 require maintenance or repair, it"s important to store the same information on multiple machines. This is called redundancy. Without redundancy, a cloud storage system couldn"t 20 clients that they could access their information at any given time. Most systems store the same data on servers that use different power supplies. That way, clients can access their data even if one power supply fails.

单选题The matter is ______ settled; we may look upon it as being settled. A. as long as B. for good C. for sure D. as good as

单选题It is common to think that other animals are ruled by instinct whereas humans lost their instincts and ruled by reason, and that this is why we are so much more flexibly intelligent than other animals. William James, in his book Principles of Psychology, took the opposite view. He argued that human behavior is more flexibly intelligent than that of other animals because we have more instincts than they do, not fewer. We tend to be blind to the existence of these instincts, however, precisely because they work so well—because they process information so effortlessly and automatically. They structure our thought so powerfully, he argued, that it can be difficult to imagine how things could be otherwise. As a result, we take normal behavior for granted. We do not realize that normal behavior needs to be explained at all. This instinct blindness makes the study of psychology difficult. To get past this problem, James suggested that we try to make the natural seem strange. It takes a mind debauched by learning to carry the process of making the natural seem strange, so far as to ask for the why of an instinctive human act. In our view, William James was right about evolutionary psychology. Making the natural seem strange is unnatural—it requires the twisted outlook seen, for example, in Gary Larson cartoons. Yet it is a central part of the enterprise. Many psychologists avoid the study of natural competences, thinking that there is nothing there to be explained. As a result, social psychologists are disappointed unless they find a phenomenon that would surprise their grandmothers and cognitive psychologists spend more time studying how we solve problems we are bad at, like learning math or playing chess, than ones we are good at. But our natural competences—our abilities to see, to speak, to find someone beautiful, to reciprocate a favor, to fear disease, to fall in love, to initiate an attack, to experience moral outrage, to navigate a landscape, and myriad others—are possible only because there is a vast and heterogeneous array of complex computational machinery supporting and regulating these activities. This machinery works so well that we don"t even realize that it exists—we all suffer from instinct blindness. As a result, psychologists have neglected to study some of the most interesting machinery in the human mind.

单选题To what ______ do Thomas Jefferson and Abraham Lincoln belong?

单选题Huntington and many of its competitors are working to make remedial instruction a commodity as______and accessible as frozen yogurt. A. ubiquitous B. rational C. necessary D. credible

单选题He displayed a complete lack of courtesy and tact in dealing with his employer.

单选题The younger generation's attraction to stereos cannot be explained only ______ familiarity with technology.

单选题Motorways are, no doubt the safest roads in Britain. Mile (21) mile, vehicle for vehicle, you axe much (22) likely to be killed or seriously injured than on an ordinary road. On (23) hand, if you do have a serious accident on a motorway, fatalities are much more likely to (24) than in a comparable accident (25) on the roads. Motorways have no (26) bends, no roundabouts or traffic lights and (27) speeds are much greater than on other roads. Though the 70 mph limit is (28) in force, it is often treated with the contempt that most drivers have for the 30 mph limit applying in built up areas in Britain. Added to this is the fact that motorway drivers seem to like traveling in groups with perhaps (29) ten meters between each vehicle. The resulting horrific pile-ups (30) one vehicle stops for some reason—mechanical failure, driver error and so on—have become all (31) familiar through pictures in newspapers or on television. How (32) of these drivers realize that it takes a car about one hundred meters to brake to a stop (33) 70 mph? Drivers also seem to think that motorway driving gives them complete protection from the changing weather. (34) wet the road, whatever the visibility in mist or fog, they (35) at ridiculous speeds oblivious of police warnings or speed restrictions (36) their journey comes to a conclusion. Perhaps one remedy (37) this motorway madness would be better driver education. At present, learner drivers are barred (38) motorways and are thus as far as this kind of driving is (39) , thrown in at the deep end. However, much more efficient policing is required, (40) it is the duty of the police not only to enforce the law but also to protect the general public from its own foolishness.

单选题Which of the following would be the best title for the passage?

单选题Cox Radio, one of the nation's largest radio chains, plans to ______ its ties with independent record promoters to distance itself from a payola-like practice that runs rampant in the music business.

单选题As far as rank is concerned, an associate professor is ______ to a professor, though they are almost equally knowledgeable.

单选题 Resale Price Maintenance is the name used when a retailer is compelled to sell at a price fixed by the manufacturer instead of choosing for himself how much to add on to the wholesale price he pays for his supplies. This practice is associated with the sate of "branded" goods, which now form a very considerable proportion of consumers' purchases and it has led to a great deal of controversy. Generally such articles are packed and advertised by the manufacturers, who try to create a special image in the minds of possible purchasers—an image made up of the look of the article, its use, its price, and everything else which might lead purchasers to ask for that brand rather than any other. If a retailer is allowed to charge any price he likes he may find it worthwhile to sell one brand at "cut" prices even though this involves a loss, because he hopes to attract customers to the shop, where they may be persuaded to buy many other types of goods at higher prices. The manufacturer of the brand that has been cut fears that the retailer may be tempted to reduce the services on this article. But even if he does not there is a danger that the customer becomes unsettled and is unwilling to pay the standard price of the article because he feels that he is being "done". This may, and indeed often does, affect the reputation of the manufacturer and lose him his markel in the long run. It is sometimes said also that the housewife—who is the principal buyer of most of these goods—prefers a fixed price because she knows where she is and has saved the bother of going from shop to shop in search of lower prices. If one shop cut all the prices of its branded goods she would undoubtedly have an advantage in shopping there. But this does not happen. A store usually lowers the price of one of two of its articles which act as a decoy and makes up its losses on others, and changes the cut-price articles from week to week so as to attract different groups of customers. And so the housewife may feel rather guilty if she does not spend time tracking down the cheaper goods. How far this is true is a matter of temperament and it is impossible to estimate what proportion of purchasers prefer a price that they can rely on wherever they choose to buy and what proportion enjoy the challenge involved in finding the store that offers them a bargain. Those who oppose Resale Price Maintenance on the other hand, point out that there are now a great many different channels of distribution—chain stores, department stores, co-operative stores, independent or unit shops, supermarkets, mail-order houses, and so on. It would be absurd to assume that all of them have exactly the same costs to meet in stocking and selling their goods, so why should they all sell at the same price? If they were allowed to choose lot themselves, the more efficient retailers would sell at lower prices and consumers would benefit. As it is, the retail price must be sufficient to cover the costs of the less efficient avenues of distribution and this means the others make a bigger profit than necessary at the expense of the public. The supporters of the fixed price argue that this is only half the story. The efficient trader can still compete without lowering his prices. He can offer better service—long credit, or quick delivery or a pleasant shop decor or helpful assistants—and can do this without imperiling the longterm interests of the manufacturer.

单选题We were______in the middle of our conversation.

单选题As a lawyer, she has a high success______in the cases she handles.

单选题The rigor of the winter in Russia was often described by Mogol. A. harshness B. perturbation C. dismay D. pessimism

单选题The television was returned because of a______.

单选题Today is the anniversary of that afternoon in April a year ago that I first saw the strange and appealing doll in the window of Abe Sheftel"s toy shop on Third Avenue near Fifteenth Street, just around the corner from my office, where the plate on the door reads: Dr. Samuel Amory. I remember just how it was that day: the first hint of spring floated across the East River, mixing with the soft-coal smoke from the factories and the street smells of the poor neighborhood. As I turned the comer on my way to work and came to Sheftel"s, I was made once more aware of the poor collection of toys in the dusty window, and I remembered the approaching birthday of a small niece of mine in Cleveland, to whom I was in the habit of sending modest gifts. Therefore, I stopped and examined the window to see if there might be anything suitable, and looked at the confusing collection of unappealing objects—a red toy fire engine, some lead soldiers, cheap baseballs, bottles of ink, pens, yellowed envelopes, and advertisements for soft drinks. And thus it was that my eyes eventually came to rest upon the doll stored away in one comer, a doll with the strangest, most charming expression on her face. I could not wholly make her out, due to the shadows and the film of dust through which I was looking, but I was aware that a tremendous impression had been made upon me as though I had run into a person, as one does sometimes with a stranger, with whose personality one is deeply impressed.

单选题Space is a dangerous place, not only because of meteors but also because of rays from the sun and other stars. Radiation is the greatest known danger to explorers in space. Doses of radiation are measured in units called "rems". We all receive radiation here on Earth from the sun, from cosmic rays and from radioactive minerals. The "normal" dose of radiation that we receive each year is about 100 millirems; it varies according to where you live, and this is a very rough estimate. Scientists have reason to think that a man can put up with far more radiation than this without being damaged, the figure of 60 rems has been agreed. The trouble is that it is extremely difficult to be sure about radiation damage-- a person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will not be discovered until the birth of children or even grandchildren. Early space probes showed that radiation varies in different parts of space around the Earth. It also varies in time because, when great spurts of gas shoot out of the sun, they are accompanied by a lot of extra radiation. Some estimates of the amount of radiation in space, based on various measurements and calculations, are as low as 10 rems per year; others are as high as 5 rems per hour. Missions to the moon have had to cross the Van Alien belts of high radiation and, during the outward and return journeys, the Apollo 8 crew accumulated a total dose of about 200 millirems per man. It was hoped that there would not be any large solar flares during the times of the Apollo noon walks because the walls of the LEMs were not thick enough to protect the men inside. Though the command modules did give reasonable protection. So far, no dangerous doses of radiation have been reported, but the Gemini orbits and the Apollo missions have been quite short. We simply do not know yet how men are going to get on when they spend weeks and months outside the protection of the atmosphere, working in a space laboratory or in a base on the moon. Drugs might help to decrease the damage done by radiation, but no really effective ones have been found so far. At present, radiation seems to be the greatest physical hazard to space travelers, but it is impossible to say just how serious the hazard will turn out to be in the future.