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单选题An epigram is usually defined being a bright or witty thought that is tersely and ingeniously expressed.
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单选题The ocean bottom—a region nearly 2.5 times greater than the total land area of the Earth —is a vast frontier that even today is largely unexplored and uncharted. Until about a century ago, the deep-ocean floor was completely inaccessible, hidden beneath waters averaging over 3,600 meters deep. Totally without light and subjected to intense pressures hundreds of times greater than at the Earth's surface, the deep-ocean bottom is a hostile environment to humans, in some ways as forbidding and remote as the void of outer space. Although researchers have taken samples of deep-ocean rocks and sediments for over a century, the first detailed global investigation of the ocean bottom did not actually start until 1968, with the beginning of the National Science Foundation's Deep Sea Drilling Project (DSDP). Using techniques first developed for the offshore oil and gas industry, the DSDP's drill ship, the Glomar Challenger, was able to maintain a steady position on the ocean's surface and drill in very deep waters, extracting samples of sediments and rock from the ocean floor. The Glomar Challenger completed 96 voyages in a 15-year research program that ended in November 1983. During this time, the vessel logged 600,000 kilometers and took almost 20,000 core samples of seabed sediments and rocks at 624 drilling sites around the world. The Glomar Challenger's core samples have allowed geologists to reconstruct what the planet looked like hundreds of millions of years ago and to calculate what it will probably look like millions of years in the future. Today, largely on the strength of evidence gathered during the Glomar Challenger's voyages, nearly all earth scientists agree on the theories of plate tectonics and continental drift that explain many of the geological processes that shape the Earth. The cores of sediment drilled by the Glomar Challenger have also yielded information critical to understanding the world's past climates. Deep-ocean sediments provide a climatic record stretching back hundreds of millions of years, because they are largely isolated from the mechanical erosion and the intense chemical and biological activity that rapidly destroy much land-based evidence of past climates. This record has already provided insights into the patterns and causes of past climatic change—information that may be used to predict future climates.
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单选题Few pleasures can equal such of a cool drink on a hot day.
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单选题There is a general ______ that pouring old wine into the same bottles is the wrong way to go. A. consensus B. census C. censorship D. conscience
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单选题Feelings of infinite ______ seized him as he recalled the days when he met with misfortune.
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单选题The author of the book On the Human Animal was not at all dubious of the disastrous future of human's life in that respect. A. ambiguous B. doubtful C. assured D. confident
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单选题There is only one difference between an old man and a young one: the young one has a glorious future before him and the old one has a ______ future behind him. A.splendid B.conspicuous C.uproarious D.imminent
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单选题Most of the participants believe it truly more democratic to hold a ______ rather than let the government alone makes decisions on all the important issues.
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单选题 Questions 61-64 are based on the following passage. "It's like being bitten to death by ducks." That's how one mother described her constant squabbles with her eleven-year-old daughter. And she's hardly alone in the experience. The arguments almost always involve mundane matters—taking out the garbage, coming home on time, cleaning up the bedroom. But despite its banality, this relentless bickering takes its adolescents—particularly mothers—report lower levels of life satisfaction, less marital happiness, and more general distress than parents of younger children. Is this continual arguing necessary? For the past two years, my students and I have been examining the day-to-day relation-ships of parents and young teenagers to learn how and why family ties change during the transition from childhood into adolescence. Repeatedly, I am struck by the fact that, despite considerable love between most teens and their parents, they can't help sparring. Even in the closest of families, parents and teenagers squabble and bicker surprisingly often—so often, in fact, that we hear impassioned recountings of these arguments in virtually every discussion we have with parents or teenagers. One of the most frequently heard phrases on our interview tapes is, "We usually get along but..." As psychologist Anne Petersen notes, the subject of parent-adolescent conflict has generated considerable controversy among researchers and clinicians. Until about twenty years ago, our views of such conflict were shaped by psychoanalytic clinicians and theorists, who argued that spite and revenge, passive aggressiveness and rebelliousness toward parents are all normal, even healthy, aspects of adolescence. But studies conducted during the 1970s on samples of average teenagers and their parents (rather than those who spent Wednesday afternoons on analysts' couches) challenged the view that family storm and stress was inevitable or pervasive. These surveys consistently showed that three-fourths of all teenagers and parents, here and abroad, feel quite close to each other and report getting along very well. Family relations appeared far more pacific than professionals and the public had believed.
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单选题Although I spoke to her about the matter several times, she took little ______ of what I said.
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单选题For many years the city has been a business center with hotel accomodation mainly for businessmen together with other ______ travellers and completely inadequate for the swarms of short-stay tourists landing in the city. A. affluent B. agonistic C. afferent D. amicable
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单选题The newly elected president seems to be a resolute man, a man of sound judgement and quick decision. A. resolvent B. resonant C. manly D. manful
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单选题The farm ministers scheduled an emergency meeting in Luxembourg in hopes of easing the worldwide "mad cow" panic. A. crisis B. alarm C. hazard D. peril
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单选题Our programs come second to theirs.
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单选题If people cannot afford to buy their own house, they can rent property from a private landlord, as 10% of the population does, or from their local council. A. as do 10% of the population B. just as 10% of the population will do C. the same as 10% of the people do D. as will do 10% of the population
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单选题Materials such as clay, wax, glass and rubber are widely used in industry today because they are {{U}}malleable{{/U}}. A. easy to manufacture B. readily available C. pliable D. buoyant
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单选题More and more vehicles using cheap fuel, declared scientists at the conference, have left Bangkok's children with body lead levels {{U}}the world highest{{/U}}.
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单选题Should we care if over 150 known species of animals have (91) from the earth in the last fifty years? Should we be concerned that there are (92) thousands of species whose very existence is (93) endangered—largely because of our activities? (94) , after all, is the natural end of populations. Species are born, then (95) , and then die. Some live a (96) time, perhaps millions of years; some die more quickly. We have (97) the extinction of many species we know about, and we have undoubtedly sealed the (98) of others. In fact, there are undoubtedly many other species that have lived among us during our time on earth, but that have disappeared as a (n) (99) of our activities without our ever having known they existed. It is hard to explain the rationale of many of us who are concerned about such matters. I have never seen a sea whale, (100) I don't want them to become extinct. Moreover, I felt this way long before I understood anything about how they might be an important part of an ecosystem. Possibly such feelings merely reflect the cultural attitude that it is "nice" to wish other living things well; thus, the attitude is (101) . I feel nice. There are, of course, more rational reasons for (102) the extermination of any species. For one thing, the kind of attitude that encourages or sanctions the destruction of other species is a threat (103) our own wellbeing. If such an attitude exists, we ourselves might (104) victim to it. living things (including us) might be expected to fare better where there is (105) for life. The extinction of other species could also threaten us (106) by simplifying the system of which we are a part or by destroying parts of the ecosystem (107) which we directly rely. For example, if we continue to poison the oceans (108) we are willing to believe only a few bottom dwellers are affected, we might (109) overstep some critical threshold and trigger the wholesale death of plankton, thus finding ourselves without a major (110) of the world's food and with our oxygen supplies dwindling.
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单选题As soon as John"s most recent novel had been out of print, it had been mauled by so many critics in New York.
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单选题 "What does the middleman do but add to the price of goods in the shops?" Such remarks are aimed at the intermediate operations between manufacturers and final customers. This practice usually attracts a lot of attention from the public and the press and the operation most talked about is what is often called wholesaling. The wholesaler buys goods in large quantities from the manufacturers and sells them in smaller parcels to retailers, and for this service his selling price to the retailer is raised several percent higher. But his job is made more difficult by retail demand not necessarily running level with manufacturers' production. Because he adjusts or regulates the flow of goods by holding stock until required, he frees the manufacturer, to some extent, from the effect on production of changing demand and having to bear the whole risk. The manufacturer can then keep up a steady production flow, and the retailer has no need to hold heavy stocks, who can call on the wholesaler for supplies any time. This wholesale function is like that of a valve in a water pipe. The middleman also bears part of the risk that would otherwise fall on the manufacturer and also the retailer. The wholesaler provides a purely commercial service, for which he is too well rewarded. But the point that is missed by many people is that the wholesaler is not just someone adding to the cost of goods. It is true one could eliminate the wholesaler but one would still be left with his function: that of making sure that goods find their way to the people who want them.
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