单选题A considerable amount of time and money has been invested in______ this system. (2003年上海交通大学考博试题)

单选题The search for the lost ship must be ______ because of poor weather.

单选题He has been plowing through a biography of Lyndon Johnson and a ______ of Henry Kissinger. A. casualty B. criteria C. dissection D. necessity

单选题It rained all the time and so we did not make good time driving to New York.

单选题Even before the treaties were ______, the "permanent Indian frontier" was moved farther west,

单选题2 On an average of six times a day, a doctor in Holland practices "active" euthanasia: intentionally administering a lethal (致死的) drug to a terminally ill patient who has asked to be relieved of suffering. Twenty times a day, life-prolonging treatment is withheld or withdrawn when there is no hope that it can effect an ultimate cure. "Active" euthanasia remains a crime on the Dutch statute books, punishable by 12 years in prison. But a series of court cases over the past 15 years has made it clear that a competent physician who car ries it out will not be prosecuted. Euthanasia, often called "mercy killing" is a crime everywhere in Western Eu- rope. But more and more doctors and nurses readily admit to practicing it, most often in the "passive" form of withholding or withdrawing treatment. The long simmering eutha- nasia issue has lately boiled over into a, sometimes, fierce public debate, with both sides claiming the mantle of ultimate righteousness. Those opposed to the practice see themselves upholding sacred principles of respect for life, while those in favor raise the banner of hu mane treatment. After years on the defensive, the advocates now seem to be gaining ground. Recent polls in Britain show that 72 percent of British subjects favor euthanasia in some circumstances. An astonishing 76 percent of respondents to a poll taken last year in France said they would like the law changed to decriminalize mercy killings. Euthanasia has been a topic of controversy in Europe since at least 1936, when a bill was introduced in the House of Lords that would have legalized mercy killing under very tightly supervised conditions. That bill failed, as have three others introduced in the House of Lords since then. Reasons for the latest surge of interest in euthanasia are not hard to find. Europeans, like Americans, are now living longer. Therefore, lingering chronic diseases have replaced critical illnesses as the primary cause of death. And the euthanasists argue that every hu man being should have the right to "die with dignity," by which they usually mean the right to escape the horrors of a painful or degrading hospitalization (住院治疗). Most experts believe that euthanasia will continue to be practiced no matter what the law says.

单选题The government will prosecute those individuals who unlawfully possess______material.

单选题Scarcely had they settle themselves in their seats in the theatre ______ the curtain went up.

单选题In the art of the Middle Ages, we never encounter the personality of the artist as an individual; rather, it is diffused through the artistic genius of centuries embodied in the rules of religious art. Art of the Middle Ages is a sacred script, the symbols and meanings of which were well settled. The circular halo placed vertically behind the head signifies sainthood, while the halo impressed with a cross signifies divinity. By bare feet, we recognize God, the angels, Jesus Christ and the apostles, but for an artist to have depicted the Virgin Mary with bare feet would have been tantamount to heresy. Several concentric, wavy lines represent the sky, while parallel lines represent water or the sea. A tree, which is to say a single stalk with two or three stylized leaves, informs us that the scene is laid on earth. A tower with a window indicates a village; and should an angel be watching from the battlements, that city is thereby identified as Jerusalem. Saint Peter is always depicted with curly hair, a short beard and a tonsure, while Saint Paul always has a bald head and a long beard. Through this system, even the most mediocre talent was elevated by the genius of the centuries. The artist of the early Renaissance broke with tradition at their own peril. When they are not outstanding, they are scarcely able to avoid insignificance and banality in their religious works; and even when they are great, they are no more than the equals of the old masters who passively followed the sacred rules.

单选题Tibet, the second largest province of China, is ______ in uranium(铀)and underground thermal power(地热).

单选题According to the passage, all of the following statements are true except that ______.

单选题There is a loss of self-confidence, a sense of personal failure, great anger and a feeling of being utterly ______.

单选题In another institute study, 35% of U. S. employees said they had health care responsibilities during the last year. It can be episodic, unpredictable and very ______.

单选题The students visited the museum and spent several hours with the______ , who was very helpful.

单选题Roger Rosenblatt's book Black Fiction, in attempting to apply literary rather than sociopolitical criteria to its subject, successfully alters the approach taken by most previous studies. As Rosenblatt notes, criticism of black writing has often served as a pretext for expounding on Black history. Addison Gayle's recent work, for example, judges the value of black fiction by overtly political standards, rating each work according to the notions of Black identity which it propounds. Although fiction assuredly springs from political circumstances, its authors react to those circumstances in ways other than ideological, and talking about novels and stories primarily as instruments of ideology circumvents much of the fictional enterprise. Rosenblatt's literary analysis discloses affinities and connections among works of Black fiction which solely political studies have overlooked or ignored. Writing acceptable criticism of black fiction, however, presupposes giving satisfactory answers to a number of questions. First of all, is there a sufficient reason, other than the racial identity of the authors, to group together works by Black authors? Second, how does Black fiction make itself distinct from other modern fiction with which it is largely contemporaneous? Rosenblatt shows that black fiction constitutes a distinct body of writing that has an identifiable, coherent literary tradition. Looking at novels written by blacks over the last eighty years, he discovers recurring concerns and designs independent of chronology. These structures are thematic, and they spring not surprisingly, from the central fact that the Black characters in these novels exist in a predominantly white culture, whether they try to conform to that culture or rebel against it. Black fiction does leave some aesthetic questions open. Rosenblatt's thematic analysis permits considerable objectivity; he even explicitly states that it is not his intention to judge the merit of the various works yet his reluctance seems misplaced, especially since an attempt to appraise might have led to interesting results. For instance, some of the novels appear to be structurally diffuse. Is this a defect, or are the authors working out of, or trying to forge, a different kind of aesthetic? In addition, the style of some black novels, like Jean Toomer's Cane, verges on expressionism or surrealism; does this technique provide a counterpoint to the prevalent theme that portrays the fate against which Black heroes are pitted, a theme usually conveyed by more naturalistic modes of expression? In spite of such omissions, what Rosenblatt does include in his discussion makes for an astute and worthwhile study. Black Fiction surveys a wide variety of novels, bringing to our attention in the process some fascinating and little-known works like James Weldon Johnson's Autobiography of an Ex-Colored Man. Its argument is tightly constructed, and is forthright, lucid style exemplifies levelheaded and penetrating criticism.

单选题What do consumers really want? That's a question market researchers would love to answer. But since people don't always say what they think, marketers would need direct access to consumers' thoughts to get the truth. Now, in a way, that is possible. At the "Mind of the Market" laboratory at Harvard Business School, researchers are looking inside shoppers' skulls to develop more effective advertisements and marketing pitches. Using imaging techniques that measure blood flow to various parts of the brain, the Harvard team hopes to predict how consumers will react to particular products and to discover the most effective ways to present information. Stephen Kosslyn, a professor of psychology at Harvard, and business school professor Gerald Zaltman, oversee the lab. "The goal is not to manipulate people's preferences," says Kosslyn, "just to speak to their actual desires." The group's findings, though still preliminary, could radically change how firms develop and market new products. The Harvard group use position emission tomography (PET) scans to monitor the brain activity. These PET scans, along with other non-invasive imaging techniques, enable researchers to see which parts of the brain are active during specific tasks (such as remembering a word). Correlations have been found between blood flow to specific areas and future behavior. Because of this, Harvard researchers believe the scans can also predict future purchasing patterns. According to an unpublished paper the group produced, "It is possible to use these techniques to predict not only whether people will remember and have specific emotional reactions to certain materials, but also whether they will be inclined to want those materials months later." The Harvard group is now moving into the next stage of experiments. They will explore how people remember advertisements as part of an effort to predict how they will react to a product after having seen an ad. The researchers believe that once key areas of the brain are identified, scans on about two dozen volunteers will be enough to draw conclusions about the reactions of specific segments of the population. Large corporations including Coca Cola, Eastman Kodak, General Motors, and Hallmark - have already signed up to fund further investigations. For their financial support, these firms gain access to the experiments but cannot control them. If Kosslyn and Zaltman and their team really can read the mind of the market, then consumers may find it even harder to get those advertising jingles-out of their heads.

单选题Which of following statements is tine about the public debate over gun network?

单选题Many rivers and lakes have been ______ by industrial waste.

单选题Such an______act of hostility can only lead to war.(2002年中国科学院考博试题)