单选题An unidentified wit once said, "laugh, and the world laughs with you. Snore, and you sleep alone." Yet snoring is far from a laughing matter, as those unfortunates with good hearing, who are rightly subjected to the sounds of the snoring disorder, will testify. It has been estimated that one of eight Americans snores: this means that there are approximately 21 million people—women as well as men—who render an unpleasant sound when they are asleep. And assuming that each snorer disturbs the sleep of at least one other person, it necessarily follows that there are 21 million unhappy listeners. While a sleeping person breathes, either in or out, several structures in his nose and throat generate the snoring. The sounds, coming from the soft palate and other soft structures of the throat, are caused by vibratory responses to inflowing and outflowing air. When the soft tissues of the mouth and throat come close to the lining of the throat, the vibrations that occur are caused by the position of the tongue. In short, the noise made by snoring can be compared to the noise when breezes flutter a flag on a pole. The frequency of the vibrations depends on the size, density, and elasticity of the affected tissues and on the force of the air flow. Although it is usually the process of in haling or exhaling through the mouth that cause snoring, short snores come from the nose of an open-mouthed sleeper. In all fairness to snorers, however, it should be emphasized that snoring is an involuntary out which stops as the offender is awakened.

单选题 There are great careers in which the increasing emphasis is on specialization. You find these careers in engineering, in production, in statistical work, and in teaching. But there is an increasing demand for people who are able to take in a great area at a glance, people who perhaps know too much about any one field. There is, in other words, a demand for people Who are capable of seeing the forest rather than the trees, of making general judgments. And these "generalists" are particularly needed for positions in administration, where it is their job to see that other people do the work, where they have to plan for other people, to organize other people' s work, to begin it and judge it. The specialist understands one field; his concern is with technique and tools. He is a "trained" man; and his educational background is properly technical or professional. The generalist-and especially the administrator-deals with people; his concern is with leadership, with planning, and with direction giving. He is an "educated" man; and the humanities are his strongest foundation. Very rarely is a specialist capable of being an administrator. And very rarely is a good generalist also a good specialist in a particular field. Any organizations need them in different proportions. It is your task to find out, during your training period, into which of the two kinds of jobs you fit, and to plan your career accordingly. Your first job may turn out to be the right job for you-but this is a pure accident. Certainly you should not change jobs constantly or people will become suspicious of your ability to hold any job. At the same time you must not look upon the first job as the final job; it is primarily a training job, an opportunity to understand yourself and your fitness for being an employee.

单选题The ______ of the undertaking did not discourage the researchers.

单选题Even when textbooks are ______ through a school system, methods of teaching may vary greatly.(2011年四川大学考博试题)

单选题To get my traveler's cheques I had to______such a special cheque to the bank for the total amount.

单选题Urbanism may produce a different style of life, but the quality of life does not differ A between town and city. Nor are residents of large communities B any C likely to display psychological symptoms of stress or alienation D than are residents of smaller communities.

单选题{{B}}Passage 3{{/B}} In the long run a government will always encroach upon freedom to the extent to which it has the power to do so. This is almost a natural law of politics, since, whatever the intentions of the men who exercise political power, the sheer momentum of government leads to a constant pressure upon the liberties of the citizen. But in many countries society has responded by throwing up its own defenses in the shape of social classes or organized corporations which, enjoying economic power and popular support, have been able to set limits to the scope of action of the executive. Such, for example, in England was the origin of all our liberties--won from government by the stand first of the feudal nobility, then of churches and political parties, and latterly of trade unions, commercial organizations, and the societies for promoting various causes. Even in European lands which were arbitrarily ruled, the powers of the monarchy, though absolute in theory, were in their exercise. checked in a similar fashion. Indeed the fascist dictatorships of today are the first truly tyrannical governments which western Europe has known for centuries, and they have been rendered possible only because on coming to power they destroyed all forms of social organization which were in any way rivals to the state.

单选题Whenever you see an old film, even one made as little as ten years ago, you cannot help being struck by the appearance of the women taking part. Their hair-styles and make-up look dated; their skirts look either too long or too short; their general appearance is, in fact, slightly ludicrous. The men taking part in the film, on the other hand, are clearly recognizable. There is nothing about their appearance to suggest that they belong to an entirely different age. This illusion is created by changing fashions. 1 The same cannot be said for women. Each year a few so-called top designers in Paris or London lay down the law and women over the whole world rush to obey. The decrees of the designers are unpredictable and dictatorial. This year they decide in their arbitrary fashion, skirts will be short and waists will be high; zips are in and buttons are out. Next year the law is reversed and far from taking exception, no one is even mildly surprised. If women are mercilessly exploited year after year, they have only themselves to blame. 2 Clothes, which have been worn, only a few times have to be discarded because of the dictates of fashion. When you come to think of it, only a woman is capable of standing in front of a wardrobe packed full of clothes and announcing sadly that she has nothing to wear. 3 Many women squander vast sums of money each year to replace clothes that have hardly been worn. Women, who cannot afford to discard clothing in this way, waste hours of their time altering the dresses they have. Hem-limes are taken up or let down; waist-lines are taken in or let out; neck-lines are lowered or raised, and so on. 4 Fashion designers are rarely concerned with vital things like warmth, comfort and durability. They are only interested in outward appearance and they take advantage of the fact that women will put up with any amount of discomfort, providing they look right. There can hardly be a man who hasn"t at some time in his life smiled at the sight of a woman shivering in a flimsy dress on a wintry day, or delicately picking her way through deep snow in dainty shoes. 5 Do the constantly changing fashions of women"s clothes, one wonders, reflect basic qualities of fickleness and instability? Men are too sensible to let themselves be bullied by fashion designers. Do their unchanging styles of dress reflect basic qualities of stability and reliability? That is for you to decide. A.Changing fashions are nothing more than the deliberate creation of waste.B.No one can claim that the fashion industry contributes anything really important to society.C.The difference between men and women in the matter of fashion is fascinating.D.Over the year, the great majority of men have successfully resisted all attempts to make them change their style of dress.E.Because they shudder at the thought of being seen in public in clothes that are out of fashion, they are annually black-mailed by the designers and the big stores.

单选题The influx of large numbers of tourists has influenced social behavior and social values, and caused a certain amount of ______ effect.(2006年厦门大学考博试题)

单选题______ scientists have observed increased pollution in the water supply.

单选题It makes me______when people don't listen, and then ask silly questions.(2007年中国矿业大学考博试题)

单选题During the outing,the author perceived Seana’s appreciation of life ______.

单选题(No wonder) that (man's) great dream has been someday to control the weather. The first step toward control is, of course, knowledge, and scientists have been (hard at work) for years trying to (keep track with) the weather.A. No wonderB. man'sC. hard at workD. keep track with

单选题Special software has been used to enable passengers to call for taxi at a low price, payment______ by direct debit of their credit cards.

单选题A large middle-aged lady ______ me on the back and said "Nice to see you again."

单选题One can ______ even from one's unpleasant experiences.

单选题According to the author, which of the following is most likely studied nowadays by psychologists?

单选题The______they felt for each other was obvious to everyone who saw them.(中国矿业大学2008年试题)

单选题It is implied in Paragraph 2 that ______.