单选题Since there are so few conservative thinkers on the committee, their influence on its recommendations is A. monumental B. negligible C. discriminatory D. impractical

单选题A salary increase would be entirely for merit. Increased ______in a business would represent real progress.

单选题I want to ______ a slightly different issue which is related to Anna's question earlier about our different meanings of open-ended problems. A. bring up B. bring about C. bring forward D. bring out

单选题Neither of the two parties ______ able to solve the problems of the poor.

单选题Never talk about that restaurant in front of me. It is______satisfactory.

单选题Edmund likes to drive at a speed ______ the traffic limit. I wonder how be always manages to escape

单选题The Second Hague Disarmament Conference of 1907 was marked more by discord than discourse, a sign of the deteriorating world situation.

单选题D. paradise

单选题The Bureau of Public Security has decided to hold an inquiry to find out the cause of the big fire.

单选题The passage probably implies that scientists have been______.

单选题While typing, Helen has a habit of stopping ______ to stroke her long and flowing hair.

单选题Lowbrows are quite ______ for highbrows to have their symphonies and their Russian novels.

单选题Criticism and self-criticism are necessary______they help us to find and correct our mistakes.

单选题The negotiations which ______ the signing of the treaty took place over a number of years. A) preceded B) prescribed C) proceeded D) processed

单选题Joe Coyne slides into the driver's seat, starts up the car and heads to town. The empty stretch of interstate gives way to urban congestion, and Coyne hits the brakes as a pedestrian suddenly crosses the street in front of him. But even if he hadn't stopped in time, the woman would have been safe. She isn't real. Neither is the town. And Coyne isn't really driving. Coyne is demonstrating a computerized driving simulator that is helping researchers at Old Dominion University (ODU) examine how in-vehicle guidance systems affect the person behind the wheel. The researchers want to know if such systems, which give audible or written directions, are too distracting—or whether any distractions are offset by the benefits drivers get from having help finding their way in unfamiliar locations. "We're looking at the performance and mental workload of drivers," said Caryl Baldwin, the assistant psychology professor leading the research, which involves measuring drivers' reaction time and brain activity as they respond to auditory and visual cues. The researchers just completed a study of the mental workload involved in driving through different kinds of environments and heavy versus, light traffic. Preliminary results show that as people "get into more challenging driving situations, they don't have any extra mental energy to respond to something else in the environment, "Baldwin said. But the tradeoffs could be worth it, she said. This next step is to test different ways of giving drivers navigational information and how those methods change the drivers' mental workload. "Is it best if they see a picture…that shows their position, a map kind of display?" Baldwin questioned. "Is it best if they hear it?" Navigational systems now on the market give point-by-point directions that follow a prescribed mute. "They're very unforgiving," Baldwin said. "If you miss a turn, they can almost seem to get angry." That style of directions also can be frustrating for people who prefer more general instructions. But such broad directions can confuse drivers who prefer route directions, Baldwin said. Perhaps manufacturers should allow drivers to choose the style of directions they want, or modify systems to present some information in a way that makes sense for people who prefer the survey style, she said. Interestingly, other research has shown that about 60 percent of men prefer the survey style, while 60 percent women prefer the route style, Baldwin said. This explains the stereotype that men don't like to stop and ask for directions and women do, Baldwin added.

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 sale 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 is 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 or 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 for 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 long term interests of the manufacturer.

单选题The process of respiration consists of two independent actions: inhaling and exhaling. A. speaking B. reciting C. smelling D. breathing

单选题Because of her dual nationality in the United States and Mexico, Maria was almost required to pay taxes in both countries until her accountant ______ with a satisfactory solution for both countries.