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已选分类 文学外国语言文学英语语言文学
单选题Today, the computer has taken up appliance status in more than 42 percent of households across the United States. And these computers are increasingly biting wired to the Internet. Online access was up more than 50 percent in just the past year. Now, more than one quarter of all U.S. households can surf in cyberspace. Mostly, this explosive growth has occurred democratically. The online penetration and computer ownership increases extend across all the demographic levels—by race, geography, income, and education. We view these trends as favorable without the slightest question because we clearly see computer technology as empowering. In fact, personal growth and a prosperous U.S. economy are considered to be the long-range rewards of individual and collective technological power. Now for the not-so-good news. The government"s analysis spells out so-called digital divide. That is, the digital explosion is not booming at the same pace for everyone. Yes, it is true that we are all plugged in to a much greater degree than any of us have been in the past. But some of us are more plugged in than others and are getting plugged in far more rapidly. And this gap is widening even as the pace of the information age accelerates through society. Computer ownership and Internet access are highly classified along lines of wealth, race, education, and geography. The data indicates that computer ownership and online access are growing more rapidly among the most prosperous and well educated: essentially, wealthy white people with high school and college diplomas and who are part of stable, two-parent households. The highest income bracket households, those earning more than $75,000 annually, are 20 times as likely to have access to the Internet as households at the lowest income levels, under $10,000 annually. The computer-penetration rate at the high-income level is an amazing 76.56 percent, compared with 8 percent at the bottom end of the scale. Technology access differs widely by educational level. College graduates are 16 times as likely to be Internet surfers at home as are those with only elementary-school education. If you look at the differences between these groups in rural areas, the gap widens to a twenty-six-fold advantage for the college-educated. From the time of the last study, the information-access gap grew by 29 percent between the highest and lowest income groups, and by 25 percent between the highest and lowest education levels. In the long run, participation in the information age may not be a zero sum game, where if some groups win, others must lose. Eventually, as the technology matures we are likely to see penetration levels approach all groups equally. This was true for telephone access and television ownership, but eventually can be cold comfort in an era when tomorrow is rapidly different from today and unrecognizable compared with yesterday.
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单选题When the fire was out, people who left their houses ______.
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单选题As college teachers, they enjoy talking about their own______.
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单选题A person's calorie requirements vary______his life. A. across B. throughout C. over D. within
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单选题 茶文化在中国文化中占据重要的地位。中国人饮茶,注重一个“品”字。“品茶”不但是鉴别茶的优劣,也带有领略饮茶情趣之意。在百忙之中泡上一壶浓茶,择幽静之处,自斟自饮,可以消除疲劳、振奋精神,也可以细啜慢饮,达到美的享受。理想的品茶的环境一般由建筑物、园林、摆设、茶具等因素组成。饮茶要求安静、清新、舒适、干净。利用园林或自然山水间,搭设茶室,让人们饮茶,意趣盎然。
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单选题People were afraid to leave their house, ______ the police had been ordered to stand by in case, of emergency, they were just as confused and helpless as anybody else.
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单选题One must try his best to ______ to the new environment.
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单选题It was not much fun to travel on one of the old sailing ships. Life was hard for both passengers and crew. (78)17th century sailing ships were small and rolled heavily in rough seas, so most of the passengers were seasick. There were no toilets, and the spaces below deck where passengers had to stay during gales were often not more than 5 foot high. Water was scarce and the little water they got was brown and smelt terrible. Food was a problem, too--there was only salted meat, ship' s biscuits and cheese, but the cheese was so hard that sailors often made buttons out of it for their jackets and trousers. There were no vegetables or fruit, so the people on board often fell ill. The sailors, however, were a bit better off than the passengers. They each had a bottle of beer a day, and they needed. The work they had to do was hard and dangerous. (79) Courage was needed, for the heavy sails had to be set and taken down in all kinds of weather, and quite often sailors were swept overboard in a gale. Almost the worst thing about the voyages was the time they took up to 70 days for the journey across the Atlantic. Not surprisingly, everybody was overjoyed when they at last approached land and stepped ashore. But some ships never arrived.
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单选题Hydrogen is the fundamental element of the universe ______ it provides the building blocks from which the other elements are produced.
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单选题We can conclude from the passage that ______.
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单选题 Directions: For this part, you are allowed 30 minutes to write a composition on The Growth of Fast Food in China. You should write at least 150 words, and base your composition on the outline (given in Chinese) below. Write your essay on Answer Sheet 1. 1)对快餐在中国的简单回顾; 2)说明快餐的三大优点; 3)指出快餐今后的发展趋势。
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单选题According to Donald Kroodsma, ______ as "rapid cultural evolution within each generation".
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单选题It is twelve o'clock. All the bells in the village churches were striking,_______year has come.
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单选题It isestimated that a scientific principle has a life expectancy of approximately a decade before it drastically revised or replaced by newer information.A.estimated B.a life expectancy C.decade D.it drastically
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单选题Researchers at Yale University Medical School and the Olin Neuropsychiatry Research Center at the Institute of Living in Hartford, Conn., have taken a pretty good look at what happens in the brain of a drunken driver. And it isn"t pretty. Using【C1】______scans, the scientists compared the neural activity that【C2】______on and off like lights on a police car as both sober【C3】______game. The maps of activity in different areas of the brain【C4】______in new detail the impact that drinking has on a complicated【C5】______task such as driving. "No one had seen that in a scanner【C6】______." said Dr. Godfrey Pearlson, a Yale psychiatrist and director of the Olin Center. Pearlson and Vince Calhoun, a researcher at Yale and Olin, first conducted brain scans on【C7】______drivers as they played the driving simulation game and then as they watched others play the game. Those scans gave the researchers a baseline of【C8】______activity in the unimpaired driver. Subjects were then given a low dose or a high dose of booze—enough to get their blood alcohol content to either 0.04 percent or 0.10 percent. An inebriated driver often will speed because alcohol has affected the cerebellum, a primitive area of the brain involved in【C9】______function, the researchers found. But drunken drivers【C10】______in and out of traffic because of errors in the front parietal cortex, which translates sensory information and helps in the decision-making process, Pearlson said. Drinking did not seem to change activity in five other areas of the brain associated with driving, such as vision centers, the researchers found. But to the surprise of no one, the more the subjects drank, the more trouble they had with their driving.
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单选题In fact she was ______ of softball, tennis and track.
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单选题______: The process ofidentifying and correcting errors in a program. A.Debug B.Bug C.Fault D.Default
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单选题下面的短文后列出了10个句子,请根据短文的内容对每个句子作出判断:如果该句提供的是正确信息,选择A;如果该句提供的是错误信息,选择B;如果该句的信息文中没有提及,选择C,并将所选答案的代码(指A、B或C)填在答题纸的相应位置上。Being "Cool" in Middle School  A new study shows that gentle and quiet kids in middle
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单选题The Longman dictionary is more likely to be criticized for cultural prejudice because ______.
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单选题
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