单选题 Science writer Tom Standage draws apt parallels between the telegraph and the gem of late 20th-century technology, the Internet. Both systems grew out of the cutting edge science of their time. The telegraph's land lines, underwater cables, and clicking gadgets reflected the 19th century's research in electromagnetism. The Internet's computers and high-speed connections reflect 20th-century computer science, information theory, and materials technology. But, while gizmos make a global network possible, it takes human cooperation to make it happen. Standage's insight in this regard adds depth to his technological history. It underscores the relevance to our own time of the struggles of Samuel Morse in America, William Cooke in England, and other telegraph pioneers. They made the technology work efficiently, sold it to a skeptical public, and overcame national and international bureaucratic obstacles. The solutions they found smooth the Internet's way today. Consider a couple of technical parallels. Telegrams were sent from one station to the next, where they were received and retransmitted until they reached their destination. Stations along the way were owned by different entities, including national governments. Internet data is sent from one server computer to another that receives and retransmits it until it reaches its destination. Again the computers have a variety of owners. Then there is the social impact. The Internet is changing the way we do business and communicate. It makes possible virtual communities for individuals scattered around the planet who share mutual interests. Yet important as this may turn out to be, it is affecting a world that was already well connected by radio, television, and other telecommunications. The Associated Press, Reuters, and other news services would have spread the Start report quickly without the Internet. In this respect, the global telegraph network was truly revolutionary. The unprecedented availability of global news in real time gave birth to the Associated Press and Reuters news services. It gave a global perspective to newspapers that had focused on local affairs. A provincialism that geographical isolation had forced on people for millennia was gone forever. Some prophets naively hailed this as a force for world peace. They predicted that tensions over cultural and ethnic differences would relax as people interacted in real time. Visionaries say the same about the Internet. While communications can smooth this process, they don't automatically make it happen. As the experience of the past century and a half has shown, peace takes the will to make it work and sustained effort by all parties.

单选题The bank clerk at the counter did not know the' customer and ______ the large amount of money involved was naturally cautious about paying out the sum on the cheque.

单选题There is little reason to believe that the United States will ______ from its stated goal of regime change in Iraq.

单选题A creek B. flood C. bonus D. pledge

单选题lifts passage most probably is ______.

单选题A man has to make ______ for his old age by putting aside enough to live on.

单选题In most countries, the metric system has been ______ for all measurement.

单选题The senator agrees that his support of the action would ______ his chances for reelection.

单选题Women once demanded men with social skills, but they"re now focusing on "his values, if he"s interested in family".

单选题Opponents of legalization often argue that inside the breast of all doctors, both sides of the argument agree, beats the heart of a Mengele______.

单选题Children loam almost nothing from television, and the more they watch, the less they remember. They regard television purely (71) entertainment, resent programs that put (72) on them and are surprised that anybody should (73) the medium seriously. Far from being over-excited by programs, they are mildly (74) with the whole thing. These are the main conclusions from a new study of children and television. The author, Cardiac Cullingford, (75) that the modem child is a (76) viewer. The study suggests that there is little (77) in the later hours. All 11-year-olds have watched programs after midnight. Apart from the obvious waste of time (78) , it seems that all this viewing has little effect. Cullingford says that children can recall few details. They can remember exactly which programs they have seen but they can (79) explain the elements of a particular plot. Recall was in " (80) proportion to the amount they had watched. "It is precisely because television, (81) a teacher, demands so little attention and response (82) children like it, argues Cullingford. Programs seeking to (83) serious messages are strongly disliked. (84) people who frequently talk on screen. What children like most are the advertisements. They see them as short programs (85) their own right and particularly enjoy humorous presentation. But again, they (86) strongly against high-pressure advertisements that attempt openly to (87) them. In addition, children are not (88) involved in the programs. If they admire the stars, it is because the actors lead glamorous lives and earn a lot of money, (89) their fictional skills with fast cars and shooting villains, children are perfectly (90) the functions of advertisements. And says Cullingford, educational television is probably least successful of an in imparting attitudes or information.

单选题Helen groups all people into two ______: those she likes and those she dislikes.

单选题English Test in Doctorial entrance examination is designed to observe the examinees' English ______in reading, writing, and translating.

单选题Students with psychological training who were tested ______.

单选题______ a delay, the train will arrive in Shanghai at 6:30 a.m.

单选题In the simplest terms, a market is the place where seller meets buyer to exchange products for money. Traditional markets still function in many parts of the world. Even in the United Sales, during summer months there are farmers' markets where direct selling and buying take place between producers and consumers. Most service industries still operate at this market level. Manufacturing industries and most agricultural enterprises are more distant from the consumer. Their products pass through several hands—truckers, warehouse wholesalers, and retailers before reaching the final consumer. Products, or commodities are usually divided into two types: consumer and industrial. Consumer goods are those that are sold to final users, the customers. These goods include food, clothing, automobiles, television sets, appliances, and all those things people go to stores to purchase. Industrial goods are those that are sold to companies or other businesses for use in manufacturing or other purposes. Automobile makers buy many of the parts used to assemble cars. A tire manufacturer buys rubber, synthetic or otherwise, with which to make tires. Eventually these materials will end up in the hands of final users: the owners of the cars. The nature of industrial goods depends on the nature of the goods to be made for final users. The price of industrial goods and raw materials will influence the price of final goods, those that the consumer buys.

单选题Life is never just ______. A. living B. being C. existing D. going

单选题From paragraph 3 we can learn that ______.