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发表于 2011-10-26 23:13:19
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41. The passage concludes that the mayor’s publicity campaign has persuaded people to ride the bus to word instead of driving, and it cites as evidence the decreased morning automobile traffic and increased bus ridership into the midtown area. But the road reconstruction described in C provides an alternative explanation for this evidence, so C is the best answer. A eliminates decreased fares as a possible explanation for the increased ridership, so it supports rather than casts doubt on the conclusion. The fact that the mayor rides the bus, cited in B, may contribute to the effectiveness of the publicity campaign, but it is irrelevant to assessing whether the campaign caused the increased ridership. D eliminates a possible explanation-that the increased ridership is a result of extra buses-and thus supports the conclusion rather than casts doubt on it. E eliminates a possible explanation-that the increased ridership is a result of improved service-and thus supports the conclusion rather than casts doubt on it. 42. The comparison suggested in D would be useful in evaluating Country T’s assessment of the cause of the severity of its stock market crash. If the severity of the crash is at least as great in the countries that are, except for recent nationalization, economically similar to Country T, Country T’s assessment is undermined. if the severity of the crash is not as great in these countries as in Country T, however, the assessment is supported. Thus, D is the best answer. A, C and E are not good answers because each concerns only determining the severity of the crash in Country T, not assessing a hypothesis about the causes of the crash. The date of Country T’s next crash is not relevant to any hypothesis about what caused its latest crash to be so severe; thus B is inappropriate. 43. D weakens the prediction of secrecy by establishing that biotechnology companies have a strong motive to encourage their researchers to publicize results. Therefore, it is the best answer. A and B support the argument that developments in biological science and engineering would be slowed if the prediction of secrecy were fulfilled, but do not provide any reason to expect that the prediction will not be fulfilled. The distortion of the research agenda asserted in C is not relevant to the question of scientific secrecy. E, which says that biotechnology companies devote some resources to fundamental problems without immediate practical benefits, is merely consistent with that argument and so does not weaken the prediction. 44. The flaw in the argument is that is assumes erroneously that a majority of decisions favorable to women in sex discrimination cases demonstrates absence of discriminatory behavior against women on the part of the judge who made those decisions. E exposes this flaw by pointing out that the judge may well have failed to decide in favor of women in cases where evidence shows that the women should have won. Therefore, it is the best answer. A and D have no bearing on the reasoning of the argument, because the origin of the cases is not at issue in the argument. B and C introduce considerations with no bearing on the reasoning of the argument. Because the argument concerns a particular judge, and cases of a particular type, B and C are inappropriate. |
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