单选题13 Monkeys are excellent climbers, and most are ______ tree dwellers. A. often B. primarily C. rarely D. savagely

单选题There is an old saying in English which goes, "Never Uput off/U until tomorrow What you can do today."

单选题Benjamin Radford, managing editor of The Skeptical Inquirer magazine, offers hundreds of examples of deceptive practices in journalism, advertising, political activism, public relations, and charity appeals. The real danger to the public, he insists, comes not from outright lies about events or individuals, because in most cases facts can ultimately be proven and mistakes corrected. But the emotional power of images, sound bites, and slogans can exert deep and lasting influence on our opinions and behavior as consumers, voters, and citizens. The detailed coverage of violent crimes dominating local TV news shows seldom includes any larger context. The cumulative impression left in the minds of viewers is that violent crime is rampant and on the rise. As a result, many people live in fear and many more support the idea of ever-larger police forces, tougher laws, and bigger prisons without considering the actual crime rates in their community or across the nation. Dramatic incidents like the sniper attacks in the Washington, D. C. , area in the fall of 2002 receive so much media attention that, again, the actual numbers of people affected and the likelihood of such attacks being repeated anywhere else become wildly exaggerated in people's minds. In the media-fueled emotional state following such spectacular disasters, the effort and expense of turning schools into locked fortresses or putting cameras on every street to monitor suspicious individuals can seem insignificant compared to the hope of keeping our children safe from harm. Yet truly effective measures require clear thinking and clearly worded policies that citizens—not only lawyers and politicians—can understand. Too often the long-term future implications of new anticrime laws and policies are not even considered in the rush to feel safer by taking rapid and visible action. Misleading practices by advertisers are another subject of public concern. Governments have long limited ads for alcohol and tobacco products and examined claims by drug companies, carmakers, food suppliers, and toy manufacturers to protect the public health. But advertising uses emotional appeals to shift the viewer's focus away from facts. Viewers who do not take the trouble to distinguish between provable claims and pleasant but meaningless word play end up buying "the sizzle, not the steak" and often paying high.

单选题Passengers are offered money to ______ their seats when planes are overbooked.

单选题When the A concentration of calcium in the blood is B too low, the parathyroid glands C began to D secrete the hormone parathormone.

单选题Mercury orbits the Sun in 88 Earth days at an average speed of 48 kilometres per second, allowing it to overtake Earth every 116 Earth days.

单选题The national compulsory education provides them ______ to economic progress.

单选题Give the lack of fit between gifted students and their schools, it is not surprising that such students often have little good to say about their school experience. In one study of 400 adults who had achieved distinction in all areas of life, researchers found that three-fifths of these individuals either did badly in school or were unhappy in school. Few MacArthur Prize fellows, winners of the MacArthur Award for creative accomplishment, had good things to say about their precollege schooling if they had not been placed in advanced programs. Anecdotal (名人轶事) reports support this. Pablo Picasso, Charles Darwin, Mark Twain, Oliver Goldsmith, and William Butler Yeats all disliked school. So did Winston Churchill, who almost failed out of Harrow, an elite British school. About Oliver Goldsmith, one of his teachers remarked, "Never was so dull a boy." Often these children realize that they know more than their teachers, and their teachers often feel that these children are arrogant, inattentive, or unmotivated. Some of these gifted people may have done poorly in school because their gifts were not scholastic. Maybe we can account for Picasso in this way. But most fared poorly in school not because they lacked ability but because they found school unchallenging and consequently lost interest. Yeats described the lack of fit between his mind and school: "Because I had found it difficult to attend to anything less interesting than my own thoughts, I was difficult to teach." As noted earlier, gifted children of all kinds tend to be strong-willed nonconformists. Nonconformity and stubbornness (and Yeats" level of arrogance and self-absorption) are likely to lead to conflicts with teachers. When highly gifted students in any domain talk about what was important to the development of their abilities, they are far more likely to mention their families than their schools or teachers. A writing prodigy (神童) studied by David Feldman and Lynn Goldsmith was taught far more about writing by his journalist, father than his English teacher. High-IQ children, in Australia studied by Miraca Gross had much more positive feelings about their families than their schools. About half of the mathematicians studied by Benjamin Bloom had little good to say about school. They all did well in school and took honors classes when available, and some skipped grades.

单选题Some of Winifred Holtby"s friend wanted to see this biography published soon after her death in order to catch a supposed topical market and to forestall the appearance of half-informed studies. For those who loved her, I fully realize how painful and exasperating it has been to wait for a complete account of life, based upon adequate knowledge and that growth of understanding which only years of close friendship can bring. My apologies are due to them for the many explanations offered of the simple fact that I did not write this book earlier because I did not want to. I knew that, if I wrote quickly, I should very soon repent of what I had written. It would have been easy enough, on the strength of memory and a superficial glance through a mass of papers which Winifred left me, to construct a readable record of her life within a few months of her death anyone accustomed to writing books could produce such a volume; and she had not been a week in her grave before a number of publishers—though not my own—had invited me to do so. From the standpoint of sales such a course would doubtless have benefited my interests as well as theirs, but I cannot believe that it would have assisted Winifred"s reputation. A hasty portrait may be good journalism, but almost without exception it is bad biography. The chief essential of biography is truth, and truth is seldom served by hurried studies however topical and efficient. In practice, such work usually proves to be short-lived to precisely the degree that it is topical. The closer one person has been to another, the greater the need for time to elapse in order that the bitterness of loss and the arbitrary selections of memory may be modified by perspective and detachment, by the thorough investigation of available material, and most of all by the quiet process of unhurried reflection. Even within the past few months, many facts of Winifred"s life and character have become clear to me. I can therefore only plead for understanding and forgiveness when I say that I could not have produced a truthful study of the best friend whom life has given me in the months directly following her death.

单选题Societies from the primitive to (the highly civilizing) (have used) food, their (most essential) resource, in social bonding celebrations (of all kinds) and in sacred rituals.A. the highly civilizingB. have usedC. most essentialD. of all kinds

单选题Vacation policies continue to be a source of______between management and the workers.

单选题Don't be so {{U}}innocent{{/U}} as to believe everything the politicians say.

单选题The Greeks who studied conic sections

单选题Theunderlinedword―revelation‖inthe3rdparagraphmeans

单选题Shoppers who have flocked to online stores for their holiday shopping are losing privacy with every mouse click, according to a new report． The study by the Washington—based Electronic Privacy Information Center scrutinized privacy policies on 100 of the most popular online shopping sites and compared those policies with a set of basic privacy principles that have come to be known as"fair information practices"． The group found that none of the 100 sites met all of the basic criteria for privacy protection, which include giving notice of what information is collected and how it is used, offering consumers a choice over whether the information will be used in certain ways, allowing access to data that give consumers a chance to see and correct the information collected, and instituting the kind of security measures that ensure that information won't fallinto the wrong hands． "This study shows that somebody else, other than Santa, is reading your Christmas list, "said Jeff Chester,executive director of the Center for Media Education, which also worked on the survey． The online privacy of children is protected by Federal Trade Commission rules, but adults do not share the same degree of privacy protection．The movement, like the online shopping industry, favors self-regulation over imposition of further movement restrictions on electronic commerce． Marc Rosenberg, executive director of the privacy group, said the study shows that self regulations have failed, "We need legislation to enforce fair information practices, "he said, "Consumers are at greater risk than they were in 1997, "when the group released its first report． The survey also asked whether the 1 00 sites used"profile—based"adverising, and whether the sites incorporate"cookies"technology,which gives Websites basic information on visitors． Profiling is the practice of gathering in then used to create targeted advertising on Websites． All but 18 of the top shopping sites did display a privacy policy,a major improvement over the early days of electronic commerce, when such policies were scarce．But that did not satisfy the privacy group．"Companies are posting privacy policies, but these policies are not the same thing as fair information practices, "Rosenberg said． The sites also did not perform well by other measures, the group said it found that 35 of the sites feature profile-based advertising, and 87 percent use cookies．The group concluded that the phonies that were posted"are typically confusing, incomplete, and inconsistent"．The report, "Surfer Beware Ⅲ：Privacy Policies Without Privacy Protection, "is the third such survey by the group．It called for further development of technologies that help consumers protect their privacy and even anonymity when exploring the Internet．

单选题Which of the following statements about Connexion is FALSE?

单选题These large-scale underground blazes cause the ground temperature to heat up and kill surrounding vegetation, produce greenhouse gases and can even ______ forest fires. A. sprout B. accelerate C. ignite D. foster

单选题Theauthor‘spurposeinwritingthispassageis_________.