单选题The growth of cell-phone users in the U.S. has tapered off from the breakneck pace of 50% annually in the late 1990s to what analysts project will be a 15% to 20% rise in 2002, and no more than that in 2003. To some extent, numerous surveys have found, slower growth in demand reflects consumer disillusionment with just about every aspect of cell-phone service—its reliability, quality, and notorious customer service. The cooling off in demand threatens to cascade through the industry: The big four U.S. cell-phone carders—Verizon Wireless, Cingular Wireless, AT&T Wireless, Sprint imperil their timetables for becoming profitable, not to mention their efforts to whittle down their mountains of debt. As the carders have begun to cut costs, wireless- equipment makers—companies such as Lucent, Nokia, and Ericsson—have been left with a market that"s bound to be smaller than they had anticipated. Handset makers have been insulated so far, but they, too, face a nagging uncertainty. They"ll soon introduce advanced phones to the U.S. market that will run on the new networks the carders are starting up over the next year or two. But the question then will be: Will Americans embrace these snazzy data features—and their higher costs—with the wild enthusiasm that Europeans and Asians have? Long before the outcome in clear, the industry will have to adopt a new mind-set. "In the old days, it was all about connectivity." says Andrew Cole, an analyst with wireless consultancy Adventis. Build the network, and customers will come. From now on, the stakes will be higher. The new mantra: Please customers, or you may not survive. To work their way out of this box, the carders are spending huge sums to address the problem. Much of Sprint PCS"s $ 3.4 billion in capital outlays this year will be for new stations. And in fact, the new high-speed, high-capacity nationwide networks due to roll out later this year should help ease the calling-capacity crunch that has caused many consumer complaints. In the meantime, some companies are using better training and organization to keep customers happy. The nation"s largest rural operator, Alltel (AT), recently reorganized its call centers so that a customer"s query goes to the first operator who"s available anywhere in the country, instead of the first one available in the customer"s home area. That should cut waiting time to one minute from three to five minutes previously.

单选题Although this area is very poor just now, its______wealth is great.

单选题Smith had some trouble______the man's accent.

单选题When television first began to expand, very few of the people who had become famous as radio commentators were able to be effective on television. Some of the difficulties they experienced when were trying to (31) themselves to the new medium were technical. When working on radio, for example, they had become (32) to seeing on behalf of the listener. This (33) of seeing for others means that the commentator has to be very good at talking. Above all, he has to be able to (34) a continuous sequence of visual images which (35) meaning to the sounds which the listener hears. In the (36) of television, however, the commentator sees everything with the viewer. His role, therefore, is completely different. He is there to make (37) that the viewer does not miss some point of interest, to help him focus on particular things, and to (38) the images on the television screen. Unlike his radio colleague, he must know the (39) of silence and how to use it at those moments (40) the pictures speak for themselves.

单选题In spite of the wide range of reading material specially designed or ______ for language learning purposes, there is yet no effective and systematic program for the reading skills. A. appointed B. assembled C. acknowledged D. adapted

单选题She always handles the problems ______ her own experience and principles.

单选题The onset of a new generation of computer attacks was marked by ______.

单选题I took my driving license with me on holiday, ______I wanted to hire a car.

单选题How can personal income tax be levied to______ as many as possible while at the same time ensuring State finances do not suffer too much?

单选题 As anyone who has tried to lose weight knows, realistic goal-setting generally produces the best results. That's partially because it appears people who set realistic goals actually work more efficiently, and exert more effort, to achieve those goals. What's far less understood by scientists, however, are the potentially harmful effects of goal-setting. Newspapers relay daily accounts of goal-setting prevalent in industries and businesses up and down both Wall Street and Main Street, yet there has been surprisingly little research on how the long-trumpeted practice of setting goals may have contributed to the current economic crisis, and unethical (不道德的) behavior in general. 'Goals are widely used and promoted as having really beneficial effects. And yet, the same motivation that can push people to exert more effort in a constructive way could also motivate people to be more likely to engage in unethical behaviors, ' says Maurice Schweitzer, an associate professor at Penn's Wharton School. 'It turns out there's no economic benefit to just having a goal—you just get a psychological benefit. 'Schweitzer says, 'But in many cases, goals have economic rewards that make them more powerful. ' A prime example Schweitzer and his colleagues cite is the 2004 collapse of energy-trading giant Enron, where managers used financial incentives to motivate salesmen to meet specific revenue goals. The problem, Schweitzer says, is the actual trades were not profitable. Other studies have shown that saddling employees with unrealistic goals can compel them to lie, cheat or steal. Such was the case in the early 1990s when Sears imposed a sales quota on its auto repair staff. It prompted employees to overcharge for work and to complete unnecessary repairs on a companywide basis. Schweitzer concedes his research runs counter to a very large body of literature that commends the many benefits of goal-setting. Advocates of the practice have taken issue with his team's use of such evidence as news accounts to support his conclusion that goal-setting is widely over-prescribed. In a rebuttal (反驳) paper, Dr. Edwin Locke writes: 'Goal-setting is not going away. Organizations cannot thrive without being focused on their desired end results any more than an individual can thrive without goals to provide a sense of purpose. ' But Schweitzer contends the 'mounting causal evidence' linking goal-setting and harmful behavior should be studied to help spotlight issues that merit caution and further investigation. 'Even a few negative effects could be so large that they outweigh many positive effects, ' he says. 'Goal-setting does help coordinate and motivate people. My idea would be to combine that with careful oversight, a strong organizational culture, and make sure the goals that you use are going to be constructive and not significantly harm the organization, ' Schweitzer says.

单选题下面的短文后列出了10个句子,请根据短文的内容对每个句子作出判断:如果该句提供的是正确信息,选择A;如果该句提供的是错误信息，选择B;如果该句的信息文中没有提及，选择C,并将所选答案的代码指A.B或C填在相应位置上。Everyone knows that listening to music when feeling bad can provide a relief. Music can also

单选题When a program starts, students should first ______.

单选题We have had to raise our prices because of the increase in the cost of materials.

单选题The dean can"t see you at the moment. He is addressing the first-year students in the lecture hall.

单选题However, at times this balance in nature is______, resulting in a number of possiblyunforeseen effects. A. troubled B. disturbed C. confused D. puzzled

单选题David sent his girlfriend a ring ______ by his grandmother for all her life.

单选题From the first paragraph we know ______.

单选题Crew chiefs Usupervised/U engines, switches and lights that told them how each item of equipment was functioning.

单选题Around the world more and more people are taking part in dangerous sports and activities. Of course, there have always been people who have looked for adventure—those who have climbed the highest mountains, explored unknown parts of the world or sailed in small boats across the greatest oceans. Now, however, there are people who seek an immediate excitement from a risky activity which may only last a few minutes or even seconds. I would consider bungee jumping to be a good example of such an activity. You jump from a high place (perhaps a bridge or a hot-air balloon) 200 meters above the ground with an elastic rope tied to your ankles. You fall at up to 150 kilometers an hour until the rope stops you from hitting the ground. It is estimated that two million people around the world have now tried bungee jumping. Other activities which most people would say are as risky as bungee jumping involve jumping from tall buildings and diving into the sea from the top of high cliffs. Why do people take part in such activities as these? Some psychologists suggest that it is because life in modem societies has become safe and boring. Not very long ago, people"s lives were constantly under threat. They had to go out and hunt for food, diseases could not easily be cured, and life was a continuous battle for survival. Nowadays, according to many people, life offers little excitement. They live and work in comparatively safe environment; they buy food in shops; and there are doctors and hospitals to look after them if they become ill. The answer for some of these people is to seek danger in activities such as bungee jumping.