单选题From the fifth paragraph, we can learn that

单选题Whatisthepurposeofthetalk?A.Toencouragepeopletoparticipateinaclubactivity.B.Tointroduceanewkindofbicycle.C.ToinformthebeginningcyclistsaboutNewJersey'strafficlaw.D.Towarntouristsaboutbicyclingontheroadways.

单选题The most important of all human qualities is______.

单选题The paragraph following the passage most likely discusses

单选题{{I}} Questions 14-16 are based on the following passage. You now have 15 seconds to read the questions 14-16.{{/I}}

单选题Writer Kenneth Davis says American history is full of adventure and surprises. The author of the book Don"t Know Much about History is slowly convincing Americans that the subject isn"t boring. Mr. Davis says he first felt the force of history as a nine-year old child when he visited Gettysburg, Pennsylvania, the site of an historic 1863 battle in the American Civil War. Some 50, 000 soldiers on the Northern and Southern sides were either killed or wounded there. "Standing there in those fields in the summer heat, feeling something extraordinary had happened here, you can"t stand in that place and not feel that you"re in the midst of something extraordinary and something very deep," he says. "So for me, history was always about the humanity, the people, and not always necessarily the famous people." He says the great social or political movements in the United States often started with ordinary people. "Whether we"re talking about the abolition of slavery, the movement for women to vote, the suffrage movement as it was called, even the temperance movement that prohibited alcohol, the civil rights movement, all these things came from the bottom up, they were grassroots movements, usually that the politicians resisted to the very end and had to be dragged kicking and screaming every inch of the way, "he notes. Mr. Davis recounts the stories of such movements in his book, which has now sold 1.5 million copies. He has written similar works on geography, the Bible, and other subjects for both adults and children. He says one lesson he draws from history is that people can change the country by mobilizing their neighbors or by voting. Sometimes, he adds, change comes about through the force of an individual personality. "Whether it"s a Washington and a Thomas Jefferson in the early days of America or a Franklin D. Roosevelt, or a Ronald Reagan, these are people whose personalities and character do absolutely make a difference on their times," he adds. He says these people were often flawed. Jefferson, for example ,was a great champion of liberty and author of the U.S. Declaration of Independence. But he was also a slave owner. And two of the country"s founding fathers were locked in a bitter feud that proved deadly for one of them. "200 years ago, on July 11, Alexander Hamilton and Aaron Burr faced off at 10 paces and Burr shoots Hamilton and kills him in a duel, "he says. "This was the sitting vice president of America and the former secretary of the treasury of America. Can you imagine today[ Vice President] Dick Cheney challenging[former treasury secretary] Paul O"Neill to aduel because he didn"t like his book? That moment speaks to the extraordinary larger-than-life characters who have peopled American history during these 228 years since we became a nation." While Americans often overlook such episodes, not all the stories they cherish are accurate. For example, the tale is widely told about George Washington cutting down a cherry tree as a youngster, then admitting it to his father, unable to tell a lie. As far as historians know, it never happened. But the writer says the real story of the nation is much more interesting than the list of dates and battles taught in schools. He says the story is as engaging as any found in fiction.

单选题 Among the devastating consequences of AIDS has{{U}} {{U}} 1 {{/U}} {{/U}}its epidemic spread in the developing world. The disease has caused{{U}} {{U}} 2 {{/U}} {{/U}}suffering, debilitation, loss of life and disruption of family, social and economic{{U}} {{U}} 3 {{/U}} {{/U}}Because of the considerable expense and logistical difficulty in providing antiviral drugs to populations{{U}} {{U}} 4 {{/U}} {{/U}}with the Human Immunodeficiency Virus{{U}} {{U}} 5 {{/U}} {{/U}}the world, the biomedical community is looking towards vaccines to help solve this compelling problem. The search for an AIDS vaccine began more than 15 years ago with great{{U}} {{U}} 6 {{/U}} {{/U}}and high expectations. With the{{U}} {{U}} 7 {{/U}} {{/U}}of the Human Immunodeficiency Virus (HIV) as the cause of AIDS, it seemed that a{{U}} {{U}} 8 {{/U}} {{/U}}would follow closely behind. But despite a large concerted effort, the problem has proven more difficult than{{U}} {{U}} 9 {{/U}} {{/U}}, and progress has not{{U}} {{U}} 10 {{/U}} {{/U}}the{{U}} {{U}} 11 {{/U}} {{/U}}hopes. Here I review the{{U}} {{U}} 12 {{/U}} {{/U}}scientific obstacles confronting the development of an effective HIV vaccine, and I consider{{U}} {{U}} 13 {{/U}} {{/U}}strategies to overcome these obstacles. It is instructive to consider the circumstances that have{{U}} {{U}} 14 {{/U}} {{/U}}to past successes in vaccine development. The smallpox vaccine is{{U}} {{U}} 15 {{/U}} {{/U}}the most successful inventions in the history of{{U}} {{U}} 16 {{/U}} {{/U}}Why, 200 years ago, without the benefit of modern biotechnology, did the smallpox vaccine succeed so readily while an AIDS vaccine{{U}} {{U}} 17 {{/U}} {{/U}}elusive? The answer lies in an experiment of nature that provided, to an astute observer, a clear direction for smallpox vaccine development. In this classic story of{{U}} {{U}} 18 {{/U}} {{/U}}discovery, Edward Jennet noticed that milk maids who had previously contracted cowpox were{{U}} {{U}} 19 {{/U}} {{/U}}to smallpox infection. This observation was the critical event leading to the finding that the cowpox virus cross-reacted immunologically with the smallpox virus and could{{U}} {{U}} 20 {{/U}} {{/U}}be used to protect against smallpox.

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单选题According to the article, Mitsubishi is a______.

单选题What does the author mean by saying "…in legal systems the responsibility for revenge becomes depersonalized and diffused" (Lines 4-5, Para. 2)?

单选题[此试题无题干]