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| 作者：不明 来源：www.pccode.net 整理 发布时间：2007-1-23 10:36:11 发布人：wongrs | |
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ninformed citizenry will extinguish the precious embers of medical progress. 46.The author begins his article with Edmund Burke's words to A. call on scientists to take some actions. B. criticize the misguided cause of animal rights. C. warn of the doom of biomedical research. D. show the triumph of the animal rights movement. 47.Misled people tend to think that using an animal in research is A. cruel but natural. B. inhuman and unacceptable. C. inevitable but vicious. D. pointless and wasteful. 48.The example of the grandmotherly woman is used to show the public's A. discontent with animal research. B. ignorance about medical science. C. indifference to epidemics. D. anxiety about animal rights. 49.The author believes that, in face of the challenge from animal rights advocates, scientists should A. communicate more with the public. B. employ hi-tech means in research. C. feel no shame for their cause. D. strive to develop new cures. 50. From the text we learn that Stephen Cooper is A. a well-known humanist. B. a medical practitioner. C. an enthusiast in animal rights. D. a supporter of animal research. ABBAD Text 3 In recent years, railroads have been combining with each other, mergingsintossuper systems, causing heightened concerns about monopoly. As recently as 1995,the top four railroads accounted for under 70 percent of the total ton-miles moved by rails. Next year, after a series of mergers is completed, just four railroads will control well over 90 percent of all the freight moved by major rail carriers. Supporters of the new super systems argue that these mergers will allow for substantial cost reductions and better coordinated service. Any threat of monopoly, they argue, is removed by fierce competition from trucks. But many shippers complain that for heavy bulk commodities traveling long distances, such as coal, chemicals, and grain, trucking is too costly and the railroads therefore have them by the throat. The vast consolidation within the rail industry means that most shippers are served by only one rail company. Railroads typically charge such“captive”shippers 20 to 30 percent more than they do when another railroad is competing for the business. S
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