单选题The degree of economic growth is an ______ of the level of living. A. index B. advantage C. access D. aspect

单选题The______choice for a consumer, therefore, is the choice among the available ones that will enable him or her to maximize utility.(浙江大学2010年试题)

单选题 Color is very important to most animals for it helps them to get along in the world. Color {{U}}(21) {{/U}}to make an animal difficult for its enemies to {{U}}(22) {{/U}}. Many animals match their {{U}}(23) {{/U}} so well that as long as they do not move no one is {{U}}(24) {{/U}} to see them. You probably have often "jumped" a rabbit. If you {{U}}(25) {{/U}}, you know how the rabbit sits perfectly still {{U}}(26) {{/U}} you are just a few feet away. You {{U}}(27) {{/U}} see the rabbit till it runs for its {{U}}(28) {{/U}} matches very closely the place where it is {{U}}(29) {{/U}}. Many times you may have walked past a rabbit {{U}}(30) {{/U}} didn't run and you never knew it was there at all. One of the most usual color schemes that helps animals to keep {{U}}(31) {{/U}} being seen, is a dark back and light underpants. If an animal is the same color all {{U}}(32) {{/U}}, there is always a dark shadow along the animal's belly (腹部). {{U}}(33) {{/U}}an enemy couldn't see the animal he could see this dark shadow. The shadow makes the animal {{U}}(34) {{/U}} out to view. But if the belly is {{U}}(35) {{/U}} than the rest of the animal, the shadow will not be noticed.

单选题We ______ Edison's success to his intelligence and hard work.

单选题Passage 3 The period of adolescence, i.e, the period between childhood and adulthood, maybe long or short, depending on social expectations and on society's definition as to what constitutes maturity and adulthood. In primitive societies adolescence is frequently a relatively short period of time, while in industrial societies with pattems of prolonged education coupled with laws against child labor, the period of adolescence is much longer and may include most of the second decade of one's life. Furthermore, the length of the adolescent period and the definition of adulthood status may change in a given society as social and economic conditions change. Examples of this type of change are the disappearance of the frontier in the latter part of the nineteenth century in the United States, and more universally, the industrialization of an agricultural society. In modern society, ceremonies of adolescence have lost their formal recognition and symbolic significance and there no longer is agreement as to what constitutes initiation ceremonies. Social ones have been replaced by a sequence of steps that lead to increased recognition and social status. For example, grade school graduation, high school graduation and college graduation constitute such a sequence, and while each step implies certain behavioral changes and social recognition. The significance of each depends on the social-economic status and the educational ambition of the individual. Ceremonies for adolescence have also been replaced by legal definitions of status roles, rights, privileges and responsibilities. It is during the nine years from the twelfth birthday to the twenty-first that the protective and restrictive aspects of childhood and minor status are removed and adult privileges and responsibilities are granted. The twelve-year-old is no longer considered a child and has to pay full fare for train, airplane, theater and movie tickets. Basically, the individual at this age loses childhood privileges without gaining significant adult rights. At the age of sixteen the adolescent is granted certain adult rights which increase his social status by providing him with more freedom and choices. He now can obtain a driver's license; he can leave public schools; and he can work without the restrictions of child labor laws. At the age of eighteen the law provides adult responsibilities as well as rights. The young man can now be a soldier, he also can marry without parental permission. At the age of twenty-one the individual obtains his full legal rights as an adult. He now can vote, he can buy liquor, he can enter into financial contracts, and he is entitled to run for public office. No additional basic rights are acquired as a function of age after majority status has been attained. None of these legal provisions determine at what point adulthood has been reached but they do point to the prolonged period of adolescence.

单选题If we continue to destroy the countryside, more animals will become ______. A. distinct B. distinguished C. endangered D. extinct

单选题Human-centered, or anthropocentric, views A favor an instrumental view of the natural world and value it only as B a means to human ends . Such views place great value and trust in science and technology, believing that the powers of control over nature C conferred by them are non-problematical and that ongoing technical development D will be crucial to ensure a world bereft of poverty, drudgery and disease etc.

单选题Great works are performed not by strength but by {{U}}persistence{{/U}}.

单选题{{B}}Passage 2{{/B}} It's very interesting to note where the debate about diversity (多样化) is taking place. It is taking place primarily in political circles. Here at the College Fund, we have a lot of contact with top corporate (公司的) leaders; none of them is talking about getting rid of those instruments that produce diversity. In fact, they say that if their companies are to compete in the global village and in the global market place, diversity is an imperative. They also say that the need for talented, skilled Americans means we have to expand the pool of potential employees. And in looking at where birth rates are growing and at where the population is shifting, corporate America understands that expanding the pool means promoting policies that help provide skills to more minorities, more women and more immigrants. Corporate leaders know that if that doesn't occur in our society, they will not have the engineers, the scientists, the lawyers, or the business managers they will need. Likewise, I don't hear people in the academy saying "Let's go backward. Let's go back to the good old days, when we had a meritocracy (不拘一格选人才)" (which was never true--we never had a meritocracy, although we've come closer to it in the last 30 years). I recently visited a great little college in New York where the campus has doubled its minority population in the last six years. I talked with an African American who has been a professor there for a long time, and she remembers that when she first joined the community, there were fewer than a handful of minorities on campus. Now, all of us feel the university is better because of the diversity. So where we hear this debate is primarily in political circles and in the media-- not in corporate board rooms or on college campuses.

单选题The old city of Beijing was surrounded bya______wall with fortified gates on four sides.

单选题Novels and short stories from a library"s fiction collection are a good ______ of enjoyable reading practice.

单选题Many people think that the standards of public ______ have declined.

单选题He said the most unusual aspect of the Mexican trial was that the 12 teenagers were not given any drags to suppress their immune systems, ______ would normally destroy any cells from other animals.

单选题Nature constantly Uyields to/U man in New York: witness those fragile side walk trees gamely straggling against encroaching cement and petrol fumes.

单选题Which of the following is not mentioned as a global hot spot for whale collisions?

单选题When we credit the successful people with intelligence, physical strength or good luck we are making excuses for ourselves because we fall ______ in all three.(2002年中国人民大学考博试题)

单选题You can come with me to the museum Ibis afternoon ______ you don' t mind walking for half an hour.

单选题The National ______ contains many valuable pictures.

单选题 A serious critic has to comprehend the particular content, unique structure, and special meaning of a work of art. And here she faces a dilemma. The critic must recognize the artistic element of uniqueness that requires subjective reaction; yet she must not be unduly prejudiced by such reactions. Her likes and dislikes are less important than what the work itself communicates, and her preferences may blind her to certain qualities of the work and thereby prevent an adequate understanding of it. Hence, it is necessary that a critic develop a sensibility informed by familiarity with the history of art and aesthetic theory. On the other hand, it is insufficient to treat the artwork solely historically, in relation to a fixed set of ideas or values. The critic's knowledge and training are, rather, a preparation of the cognitive and emotional abilities needed for all adequate personal response to an artwork's own particular qualities.

单选题All bad things are interconnected, and any one of them is______to be the cause of any other.