单选题It takes A the most cool-headed and B good-tempered of drivers C to resist the temptation to revenge D as subjected to uncivilized behavior.

单选题In patients with Huntington"s disease, it"s the part of the brain called the basal ganglia that"s destroyed. While these victims have perfectly intact explicit memory systems, they can"t learn new motor skills. An Alzheimer"s patient can learn to draw in a mirror but can"t remember doing it; a Huntington"s patient can"t do it but can remember trying to learn. Yet another region of the brain, an almond-size knot of neural tissue seems to be crucial in forming and triggering the recall of a special subclass of memories that is tied to strong emotion, especially fear. These are just some of the major divisions. Within the category of implicit memory, for example, lie the subcategories of associative memory—the phenomenon that famously led Parlor"s dogs to salivate at the sound of a bell which they had learned to associate with food and of habituation, in which we unconsciously file away unchanging features of the environment so we can pay closer attention to what"s new and different upon encountering a new experience. Within explicit, or declarative memory, on the other hand, there are specific subsystems that handle shapes, textures such as faces, names—even distinct systems to remember nouns vs. verbs. All of these different types of memory are ultimately stored in the brain"s cortex, within its deeply furrowed outer layer—a component of the brain dauntingly more complex than comparable parts in other species. Experts in brain imaging are only beginning to understand what goes where, and how the parts are reassembled into a coherent whole that seems to be a single memory is actually a complex construction. Think of a hammer, and your brain hurriedly retrieves the tool"s name, its appearance, its function, its heft and the sound of its clang, each extracted from a different region of the brain. Fail to connect person"s name with his or her face, and you experience the breakdown of that assembly process that many of us begin to experience in our 20s and that becomes downright worrisome when we reach our 50s. It was this weakening of memory and the parallel loss of ability to learn new things easily that led biologist Joe Tsien to the experiments reported last week. "This age-dependent loss of function," he says, "appears in many animals, and it begins with the onset of sexual maturity." What"s happening when the brain forms memories—and what fails with aging, injury and disease—involves a phenomenon known as "plasticity". It"s obvious that something in the brain changes as we learn and remember new things, but it"s equally obvious that the organ doesn"t change its overall structure or grow new nerve cells wholesale. Instead, it"s the connections between new cells—and particularly the strength of these connections that are altered by experience. Hear a word over and over, and the repeated firing of certain cells in a certain order makes it easier to repeat the firing pattern later on. It is the pattern that represents each specific memory.

单选题I suggest that you offer your ______ to a publisher at later date. [A] manual [B] manuscript [C] maneuver [D] miniature

单选题Men have often been praised by being told that they were as smart as a Philadelphia lawyer. No one knows why there is something special about Philadelphia lawyers, but the expression "smart as a Philadelphia lawyer" seems to have come from a famous trial early in the 18th century. An Englishman, William S. Cosby arrived in New York as the royal governor of the province. He was a tyrant. He wanted to make money quickly and he ruled the province with no thought for the law or the rights of the people. Among those who opposed his rule was John Peter Zinger who came to America from Germany. Mr. Zinger started a newspaper which praised liberty and sharply criticized the governor. Governor Cosby arrested Mr. Zinger, charged him with slander and kept him in prison for 9 months. Mr. Zinger could not find a New York lawyer to defend him because of the governor's power. But a leading lawyer from Philadelphia agreed to defend Mr. Zinger. He was Andrew Hamilton, white-haired and almost 80 years old. The trial opened, the jury chosen and charges read. At that time, the law on slander said that jury could decide only if the person accused published in the newspaper named in the charges. The question of whether words published were true or not was to be decided by the judge. Mr. Zinger told the court he was innocent. Then the lawyer from Philadelphia rose, admitted that Mr. Zinger did publish the newspaper as charged. But Mr. Hamilton continued. The publishing of a newspaper does not make a person guilty of slander. He said that words themselves must be proved false or slanderous; Otherwise Mr. Zinger is innocent. The judge warned Mr. Hamilton that he, the judge, would decide if the words were slanderous or not. Mr. Hamilton quickly turned to the jury and asked them to decide. He said that it was their right to decide whether the alleged slander was in fact the truth. In his final statement to the jury, Mr. Hamilton said the question was much bigger than the charges against Mr. Zinger. He said the question was liberty and right of people to oppose dishonesty and tyranny by speaking and writing the truth. After a brief discussion the jury declared that Mr. Zinger was not guilty and cheers broke out in the courtroom. The decision established the principle of freedom of the press in the American Colonies. Mr. Hamilton was praised as a hero. Through the years the fame of Mr; Zinger trial and praise for Mr. Hamilton has spread throughout the country. Anti so it is believed that the expression "as smart as a Philadelphia lawyer" honors the man from Philadelphia who successfully de- fended the freedom of the press to print the truth.

单选题Penal systems of most countries provide for more Uprotracted/U imprisonment of habitual offenders than would normally be imposed upon first offenders.

单选题I don't like my hair straight so I 'm going to have it______.

单选题By 1929, Mickey Mouse was as popular ______ children as Coca-cola.

单选题She values the boy as if he were her own son.

单选题There is a popular English belief that if you can't get in the water, you might as well get on it. It may be that the seas around our coasts are too chill and uninviting for round-the-year bathing, or that in many eases treacherous currents and sharp incisor-like rocks beneath the water discourage all but the most venturesome. Perhaps the real answer is that we are islanders and islands, on the whole, tend to produce sea-faring people. Our early history of exploration and discovery, to say nothing of downright piracy, goes some way to support this. However that may be, the Englishman is not just content to get on the sea, he is also irresistibly compelled to get on his inland waterways. Our rivers, canals and lakes, besides proving a cheap, if relatively slow form of transport, attract a regular army of enthusiastic amateurs who spend their winters scraping and painting their boats in readiness for the warmer weather, some even going so far as to build their own craft. When spring comes, the proud owners take to the water in their little boats, white sails flapping, like so many ducks. There are of course innumerable rowing boats, punts, skiffs and dinghies, and superior, motor-powered cabin cruisers whose owners wear yachting caps and nautical-looking sweaters. These last, usually flying a club pennant and with a girl or two stretched out on the cabin roof, proceed at speed down the river creating a wash that sets the smaller boats bobbing and bouncing and even on occasion capsizing. Even their magnificence, however, is eclipsed by the rowing eights who streak up and down in their elegant long boats, dipping their oars to the merciless cries of the coach: "In-Out-In-Out". These are the giants of the river, bronzed and muscular, oblivious of everything but the precision of their timing and the need for speed. Any description of our inland waterways would be incomplete without reference to those who have made the water their way of life. Disregarding damp, inconvenience, gales, storms and the danger of floods, they make their homes on the water, in houseboats or converted barges, becoming, as it were, a species of human water-rat. Their original intention may have been to get away from the tension and frustration of city or suburban life, but it is soon apparent that theirs is no gipsy existence. Their homes, moored or floating, are painted in gay colours, electric light and bathrooms are installed, curtains appear at the windows and neighbours vie with one another in the cultivation of trailing pot plants and hanging baskets of flowers. The result is comfortably suburban—a dog or a eat is frequently introduced into the domestic scene—and the whole is an excellent example of the art of compromise. The owners have lost none of their creature comforts, but they have satisfied their urge to live on the water.

单选题The manager is expected to use his best endeavors to promote the artist's career, while the artist should do nothing to ______ the reputation of the manager.

单选题He worked closely with General Washington, wheedled money and supplies from the States, borrowed money in the face of overwhelming difficulties, and on occasion even obtained personal loans to further the war cause.

单选题The two copper mining companies will be Umerged/U soon so as to become more competitive at the world market.

单选题The May 4lh Movement of 1919 is a______event in the modern history of China.

单选题Apparently short skirt is in______this year.

单选题His illness first______itself as severe stomach pains and headaches.(中国矿业大学2008年试题)

单选题[此试题无题干]

单选题When they advise your kids to "get an education" if you want to raise your income, they tell you only half the truth. What they really mean is to get just enough education to provide man power for your society, but not too much that you prove an embarrassment to your society. Get a high school diploma, at least. Without that, you are occupationally dead, unless your name happens to be George Bernard Shaw or Thomas Alva Edison and you can successfully drop out in grade school. Get a college degree, if possible. With a B. A., you are on the launching pad. But now you have to start to put on the brakes. If you go for a master"s degree, make sure it is an MBA, and only from a first-rate university. Beyond this, the famous law of diminishing returns begins to take effect. Do you know, for instance, that long-haul truck drivers earn more a year than full professors? Yes, the average 1977 salary for those truckers was $24,000, while the full professors managed to average just $23,930. A Ph.D is the highest degree you can get, but except in a few specialized fields such as physics or chemistry, where the degree can quickly be turned to industrial or commercial purposes, you are facing a dim future. There are more Ph.Ds unemployed or underemployed in this country than in any other part of the world by far. If you become a doctor of philosophy in English or history or anthropology or political science or languages or—worst of all—in philosophy, you run the risk of becoming overeducated for our national demands. Not for our needs, mind you, but for our demands. Thousands of Ph.Ds are selling shoes, driving cabs, waiting on tables and filling out fruitless applications month after month. And then maybe taking a job in some high school or backwater college that pays much less than the janitor earns. You can equate the level of income with the level of education only so far. Far enough, that is, to make you useful to the gross national product, but not so far that nobody can turn much of a profit on you.

单选题3 The biosphere is the name biologists give to the sort of skin on the surface of this planet that is inhabitable by living organisms. Most land creatures occupy only the interface between the atmosphere and the land; birds extend their range for a few hundred feet into the atmosphere; burrowing invertebrates (无脊椎动物) such as earthworms may reach a few yards into the soil but rarely penetrate farther unless, it has been recently disturbed by men. Fish cover a wider range, from just beneath the surface of the sea to those depths of greater than a mile inhabited by specialized creatures. Fungi (真菌) and bacteria are plentiful in the atmosphere to a height of about half a mile, blown there by winds from the lower air. Balloon exploration of the stratosphere (同温层) as long ago as 1936 indicated that moulds and bacteria could be found at heights of several miles, recently the USA's National Aeronautics and Space Administration has detected them, in decreasing numbers, at heights up to eighteen miles. They are pretty sparse at such levels, about one for every two thousand cubic feet, compared with 50 to 100 per cubic foot at two to six miles (the usual altitude of jet aircraft), and they are almost certainly in an inactive state. Marine bacteria have been detected at the bottom of the deep Pacific trench, sometimes as deep as seven miles; they are certainly not inactive. Living microbes have also been obtained on land from cores of rock drilled (while prospecting for oil) at depths of as much as 1,200 feet. Thus we can say, disregarding the exploits of astronauts, that the biosphere has a maximum thickness of about twenty-five miles. Active living processes occur only within a compass of about seven miles, in the sea, on land and in the lower atmosphere, but the majority of living creatures live within a zone of a hundred feet or so. If this planet were sealed down to the size of an orange, the biosphere, at its extreme width, would occupy the thickness of the orange-colored skin, excluding the pith. In this tiny zone of our planet take place the multitude of chemical and biological activ ities that we call life. The way in which living creatures interact with each other, depend on each other or compete with each other, has fascinated thinkers since the beginning of recorded history. Living things exist in a fine balance which is often taken for granted be cause, from a practical point of view, things could not be otherwise. Yet it is a source of continual amazement to scientists because of its intricacy and delicacy. The balance of na ture is obvious most often when it is disturbed. Yet even here it can seem remarkable how quickly it readjusts itself to a new balance after a disturbance. The science of ecology—the study of the interaction of organisms with their environment—has grown up to deal with the minutiae of the balance of nature.

单选题Without a doubt, ______the key issue in the President's campaign.