单选题The story that follows ______ two famous characters of the Rocky Mountain gold rush days.

单选题I can't understand how he can fell that his colleagues are always ready to {{U}}denounce{{/U}} him.

单选题We peer out beyond our world to glimpse objects that lie A(at the very edge of) the universe, B(stars teetering tantalizingly) on the beginning of time. We peer inward to our own genome, swiftly unraveling the puzzle of C(what tiny bit of) chemical code D(manifests themselves as)appearance, ten-dency, advantage and liability in the marvelous human creature.

单选题Although she did not look back she could tell that he was still following. Let ______ streetcar, she thought, and really there was one.

单选题Free medical service is______to nearly all the college students in China.(2011年南京师范大学考博试题)

单选题In the 1970s, ______.

单选题{{B}}Passage 1{{/B}} For reasons yet to be fully understood, one out of ten human beings in the world is left-handed, and from one generation to the next, this ratio is roughly preserved. As we know, left-handedness cuts across socioeconomic, ethnic, and gender lines. Yet throughout history prominent figures in science—to say nothing of religion—have identified in left-handedness signs of viciousness or worse. In 1903, Italian physician Cesare Lombroso identified left-handedness as one of the degeneracy signs of the born criminals. Three years later, Dr. Wilhelm Fliess suggested that left-handedness was a reliable identification of homosexuality. And in 1937 British psychologist Cyril Burt declared left-handedness to be a mark of an ill-organized nervous system. As demonstrated by all the "therapeutic" coercion that left-handed children were subjected to during the first half of the 20th century, these biases had more than just a theoretical impact. Yet even when this gauche predilection was being discouraged, handism was certainly never taken as seriously as racism or sexism now is. Perhaps it's the arbitrary nature of the trait that has militated against meaningful discrimination. After all, even when both parents are right-handed, there is still a 10 percent Chance that they will bring a left-handed baby into the world. Moreover, a white baby born in Scarsdale is just as likely to be left-handed as a black baby in Harlem. Hence when the left-handed George Bush became President of the United States, it was hardly interpreted as a blow against prejudice. Nor was much attention paid to the fact that Ronald Reagan and Gerald Ford were also southpaws.

单选题How is slang defined by the author?

单选题The plan would require two, or possibly more, class periods for its Ufulfillment/U.

单选题I've never ______ the theory that people am more important than animals. A. subscribed to B. hung on C. engaged in D. indulged in

单选题[此试题无题干]

单选题Hundreds of local residents signed a______against closing the swimming-pool.(2010年北京航空航天大学考博试题)

单选题{{B}}Passage Five{{/B}} Instead of advancing the public discussion of biotechnology, David Shenk succeeds merely in displaying his general ignorance and unfounded fears in his recent article "Biocapitalism" His claim that "no living creature has ever before been able to upgrade its own operating system" ignores transduction ( the act or process of transferring genetic material or characteristics from one bacterial cell to another) and bacterial conjugation (the temporary union of two bacterial cells), which are ways organisms have "upgraded" their own genomes with novel DNA for hundreds of millions of years. A first-year biology major could have told him that. For Shenk to suggest that his daughter may someday use a before-birth genetic test for "quick-wittedness" is extremely dun-witted, ignoring the complexity of polygenetic traits while embracing a shallow genetic determinism. Nurture ——utterly absent from his discussion ——really does matter. Finally, worrying about the effects on the gene pool of a "culture in which millions choose the same desirable genes" is worse than pointless. The United Nations projects an approximate human population of eight billion by the year 2020. Even if Shenk's worst fears are realized, and the wealthy parents of 100 million children can and do select for a polygenetic trait ——say, blue eyes ——this would present only a modest shift in the gene pool of 1 in 80, or 1.25 percent, assuming that none of those children would otherwise have been born with blue eyes. But what truly matters for the gene pool in the 1000-year-long run is the capacity of this trait to grant reproductive success in subsequent generations. Whatever advantage blue eyes currently grant in acquiring a mate presumably derives in part from the trait's relative scarcity. Elementary economics shows that if you flood the market with an asset, you diminish the relative value of that asset: more blue eyes will make blue eyes less sexy. Is it really too much to expect familiarity with either biology or economics from an essay entitled "Biocapitalism"?

单选题A(n) ______ is a person who studies the origin, the behavior, and the physical, social, and cultural development of human beings.

单选题In a recent survey, Garber and Holtz concluded that the average half-hour children's television show contains 47 violent acts. When asked about the survey network television executive Jean Pater responded, "I sure as heck don't think that Bugs Bunny's pouring a glass of milk over a chipmunk's head is violence. " Unfortunately, both Garber and Holtz and Pater beg the question. The real issue is whether children view such acts as violence. The violence programming aimed at children almost always appears in the context of fantasy. Cartoon violence generally includes animation, humor, and a remote setting. There is no evidence of direct imitation of television violence by children, though there is evidence that fantasy violence can energize previously learned aggressive response such as a physical attack on another child during play. It is by no means clear, however, that the violence in a portrayal is solely responsible for this energizing effect. Rather, the evidence suggests that any exciting material can trigger subsequent aggressive behavior and that it is the excitation rather than the portrayal of violence that instigates or energizes any subsequent violent behavior. "Cold" imitation of violence by children is extremely rare, and the very occasional evidence of direct, imitative associations between television violence and aggressive behavior has been limited to extremely novel and violent acts by teenagers or adults with already established patterns of deviant behavior. The institutional effect means, in the short term, that exposure to violent portrayals could be dangerous if shortly after the exposure(within 15 to 20 minutes), the child happens to be in a situation that calls for interpersonal aggression as an appropriate response, for example, an argument between siblings or among peers. This same institutional effect, however, could be produced by other exciting but nonviolent television content or by any other excitational source, including, ironically, a parent's turning off the set. So there is no convincing causal evidence of any cumulative instigational effects such as more aggressive or violent dispositions in children. In fact, passivity is a more likely long-term result of heavy viewing of television violence. The evidence does not warrant the strong conclusions advanced by many critics who tend to use television violence as a scapegoat to draw public attention away from the real causes of violence—causes like abusive spouses and parents and a culture that celebrates violence generally.

单选题From 1965 to 1978 American consumer prices increased at an average annual rate of 5.7 percent. This Uominous/U shift was followed by consumer price gains of 13.3 percent in 1979.