单选题It can be inferred from the information given in the text that the best candidate for cloning would be

单选题Which of the following statements is TRUE according to the text?

单选题We may infer that the author is most probably a ______.

单选题What drug can be obtained from a relative of hemp?

单选题Stinking buses, their passengers pale and tired, jam the crowded streets. Drivers shout at one another and honk their horns. Smog smarts the eyes and chokes the senses. The scene is Athens at rush hour. The city of Plato and Pericles is in a sorry state of affairs, built without a plan, lacking even adequate sewerage facilities, hemmed in by mountains and the sea, its 135 square miles crammed with 3.7 million pepole. Even Athens' ruins are in ruin: sulfur dioxiode eats away at the marble of the Parthenon and other treasures on the Acropolis. As Greek Premier Constantine Karamanlis has said, "The only solution for Athens would be to demolish half of it and start all over again." So great has been the population flow toward the city that entire hinterland villages stand vacant or nearly so. About 120000 people from outlying provinces move to Athens every year, with the result that 40% of Greece's citizenry are now packed into the capital. The migrants come for the few available jobs, which are usually no better than the ones they fled. At the current rate of migration, Athens by the year 2000 will have a population of 6.5 million, more than half the nation. Aside from overcrowding and poor public transport, the biggest problems confronting Athenians are noise and pollution. A government study concluded that Athens was the noisiest city in the world. Smog is almost at killing levels: 180 300 mg of sulfur dioxide per cubic meter of air, or up to four times the level that the World Health Organization considers safe. Nearly half the pollution comes from cars. Despite high prices for vehicles and fuel (＄2.95 per gallon) ,nearly 100000 automobiles are sold in Greece each year;3000 driver's licenses are issued in Athens monthly. After decades of neglect, Athens is at last getting some attention. In March a committee of representatives from all major public service ministries met to discuss a plan to unclog the city, make it livable and clean up its environment. A save-Athens ministry, which will soon begin functioning, will propose heavy taxes to discourage in-migration, a minimum of ＄5 billion in public spending for Athens alone, and other projects for the countryside to encourage residents to stay out. A master plan that will move many goverment offices to the city's fringes is already in the works. Meanwhile, more Greeks keep moving into Athens. With few parks and precious few oxygen-producing plants, the city and its citizens are literally suffocating.

单选题{{B}}Text 4{{/B}} Britain's undeclared general election campaign has already seen the politicians trading numbers as boxers trade punches. There is nothing new in such statistical slanging matches (相互谩骂). What is new is an underestimation of worry about what has been happening to official statistics under the Labour government. One of the most important figures for Gordon Brown when presenting his pre-election budget on March 16th was the current-budget balance. This is the gap between current revenues and current spending. It matters to the chancellor of the exchequer(财政部长) because he is committed to meeting his own "golden rule" of borrowing only to invest, so he has to ensure that the current budget is in balance or surplus over the economic cycle. Mr. Brown told MPs that he would meet the golden rule for the current cycle with & 6 billion ( $11.4 billion) to spare--a respectable-sounding margin, though much less than in the past. However, the margin would have been halved but for an obscure technical change announced in February by the Office for National Statistics to the figures for road maintenance of major highways. The ONS said that the revision was necessary because it had been double-counting this spending within the current budget. If this were an isolated incident, then it might be disregarded. But it is not the first time that the ONS has made decisions that appear rather convenient for the government. Mr. Brown aims to meet another fiscal rule, namely to keep pubic net debt below 40% of GDP, again over the economic cycle. At present he is meeting it but his comfort room would be reduced if the & 21 billion borrowings of Network Rail were included as part of public debt. They are not thanks to a controversial decision by the ONS to classify the rail-infrastructure corporation within the private sector, even though the National Audit Office, Parliament's watchdog, said its borrowings were in fact government liabilities. This makes it particularly worrying that the official figures can show one thing, whereas the public experiences another. One of the highest-profile targets for the NHS is that no patient should spend more than four hours in a hospital accident and emergency department. Government figures show that by mid-2004, the target was being met for 96% of patients. But according to a survey of 55,000 patients by the Healthcare Commission, an independent body, only 77% of patients said they stayed no more than four hours in A&E. One way to help restore public confidence in official statistics would be to make the ONS independent, as the Conservatives and Liberal Democrats have suggested. Another would be for the National Audit Office to assess how the government has been performing against targets, as the Public Administration Committee has recommended.

单选题In the past, American colleges and universities were created to serve a dual purpose to advance learning and to offer a chance to become familiar with bodies of knowledge already discovered to those who wished it. To create and to impart, these were the distinctive features of American higher education prior to the most recent, disorderly decades of the twentieth century. The successful institution of higher learning had never been one whose mission could be defined in terms of providing vocational skills or as a strategy for resolving societal problems. In a subtle way Americans believed higher education to be useful, but not necessarily of immediate use. Another purpose has now been assigned to the mission of American colleges and universities. Institutions of higher learning--public or private--commonly face the challenge of defining their programs in such a way as to contribute to the service of the community. This service role has various applications. Most common are programs to meet the demands of regional employment markets, to provide opportunities for upward social and economic mobility, to achieve racial, ethnic, or social integration, or more generally to produce "productive" as compared to " educated" graduates. Regardless of its precise definition, the idea of a service-university has won acceptance within the academic community. One need only be reminded of the change in language describing the two-year college to appreciate the new value currently being attached to the concept of a service-related university. The traditional two-year college has shed its pejorative "junior" college label and is generally called a "community" college, a clearly value-laden expression representing the latest commitment in higher education. Even the doctoral degree, long recognized as a required "union card" in the academic world, has come under severe criticism as the pursuit of learning for its own sake and the accumulation of knowledge without immediate application to a professor's classroom duties. The idea of a college or university that performs a triple function--communicating knowledge to students, expanding the content of various disciplines, and interacting in a direct relationship with society--has been the most important change in higher education in recent years. This novel development, however, is often overlooked. Educators have always been familiar with those parts of the two-year college curriculum that have a "service" or vocational orientation. It is important to know this. But some commentaries on American postsecondary education tend to underplay the impact of the attempt of colleges and universities to relate to, if not resolve, the problems of society. What's worse, they obscure a fundamental question posed by the service-university--what is higher education supposed to do?

单选题According to the passage, people often wrongly believe that in pursuing a career as a manager

单选题When mentioning "thinking/acting cycles" (in Para. 4), the author is most likely to believe that

单选题It has long been the subject of speculation among the police and criminologists: what would happen if all the officers who now spend so much of their time taking statements, profiling criminals and moving pieces of paper around were suddenly put on the streets? Crime figures released by London's Metropolitan Police this week provide the best answer yet. Following the bombings of July 7th and 21st, thousands of police officers materialised on London's pavements, many of them sporting brightly coloured jackets. Drawn from all over the city, they were assigned to guard potential targets such as railway stations. The police presence was especially heavy in the bombed boroughs: Camden (which was struck three times), Hammersnrith and Fulham, Lamheth, Tower Hamlets, Westminster and the City of London. The show of force did not just scare off terrorists. There was less crime in July than in May or June, which As unusual: the warmer month tends to bring out criminal tendencies, as windows are left open and alcohol is imbibed alfresco. But the chilling effect was much stronger in the six boroughs that were targeted by terrorists. There, overall crime was down by 12% compared with July 2004. In inner London as a whole, crime fell by 6%. But in outer London, where the blue line was thinner, it went up slightly. Simon Foy, who tracks such trends at the Metropolitan Police, says that crime fell particularly steeply on the days of the attacks, partly because of the overwhelming police presence and partly because "even criminals were watching their televisions". What is significant is that crime barely rose thereafter. That was a change from the aftermath of September 11th 2001, when crime quickly soared just about everywhere—possibly because officers were deployed only in the very centre of London. "The received wisdom among criminologists is that marginal changes in visible patrolling have little or no effect on crime," says Mike Hough, a criminologist at King's College London. July's experiment should put that argument to rest. Even if offenders do not make rational calculations about the odds of being caught—which was low both before and after the bombings--they will Be moved by a display of overwhelming force.

单选题Pretty in pink: adult women do not remember being so obsessed with the colour, yet it is pervasive in our young girls" lives. It is not that pink is intrinsically bad, but it is such a tiny slice of the rainbow and, though it may celebrate girlhood in one way, it also repeatedly and firmly fuses girls" identity to appearance. Then it presents that connection, even among two-year-olds, between girls as not only innocent but as evidence of innocence. Looking around, I despaired at the singular lack of imagination about girls" lives and interests. Girls" attraction to pink may seem unavoidable, somehow encoded in their DNA, but according to Jo Paoletti, an associate professor of American Studies, it is not. Children were not colour-coded at all until the early 20th century, in the era before domestic washing machines all babies wore white as a practical matter, since the only way of getting clothes clean was to boil them. What"s more, both boys and girls wore what were thought of as gender-neutral dresses. When nursery colours were introduced, pink was actually considered the more masculine colour, a pastel version of red, which was associated with strength. Blue, with its intimations of the Virgin Mary, constancy and faithfulness, symbolized femininity. It was not until the mid-1980s, when amplifying age and sex differences became a dominant children"s marketing strategy, that pink fully came into its own, when it began to seem inherently attractive to girls, part of what defined them as female, at least for the first few critical years. I had not realised how profoundly marketing trends dictated our perception of what is natural to kids, including our core beliefs about their psychological development. Take the toddler. I assumed that phase was something experts developed after years of research into children"s behavior: wrong. Turns out, according to Daniel Cook, a historian of childhood consumerism, it was popularized as a marketing trick by clothing manufacturers in the 1930s. Trade publications counselled department stores that, in order to increase sales, they should create a "third stepping stone" between infant wear and older kids" clothes. It was only after "toddler" became a common shoppers" term that it evolved into a broadly accepted developmental stage. Splitting kids, or adults, into ever-tinier categories has proved a sure-fire way to boost profits. And one of the easiest ways to segment a market is to magnify gender differences—or invent them where they did not previously exist.