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沙发
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发表于 2011-11-3 22:54:49
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74. By pointing out that, when occurring in natural combination with other nutrients, vitamins are more usable by the body than are those same vitamins when added as a supplement, choice A provides reason to believe that a well-balanced breakfast is a better source of vitamins than is a fortified breakfast cereal. A is the best answer. Choice B does not support the position taken, although the position taken, if correct, is relevant to the people mentioned. Choice E describes a similarity between fortified cereals and other cereals. Choice C provides a reason for adding supplements to processed cereals, and choice D gives information about unprocessed cereals, but neither adds support for the alleged advantage of a well-balanced breakfast over a fortified cereal.
75. Since an unsecured loan is more risky, from the lender’s point of view, than a loan baked by collateral, the fact that lenders receive higher interest rates for unsecured loans is an illustration of the principle outlined in the passage. Thus, choice B is the best answer. None of the other choices gives a clear instance in which increased risk is compensated by the potential for increased return. Choice A does not concern return on investment at all. Choice C is an instance of low return unrelated to risk. In choice D, contrary to the principle, the rate of return remains constant despite possible variations in risk, and choice E also runs counter to the principle if investments in well-established companies entail less risk.
76. If choice E were not assumed, the costs of the services of the famous singers of well-known renditions of songs would not be said to affect advertising costs. Since advertising costs are, however, projected to rise because of the relatively high cost of famous singers’ services, choice E is assumed and is the best answer. Choice A is irrelevant to the argument, since famous singers’ service cost more than imitators’ anyway. The argument addresses commercials’ cost, not their effectiveness, so choice B is not assumed. The argument assumes that some well-known renditions of songs are available, but does not require that any versions be unavailable (choice C). Since the argument states that advertising firms will stop using imitators, choice D is not assumed.
77. The mayor’s reasoning rests on assuming that, if it costs more to travel to the city by car than by bus, people will choose to travel by bus rather than by car. Choice B provides evidence that this assumption is false, and is therefore the best answer. Choice A does not undermine the mayor’s view that the five-dollar fee will provide an incentive to switch to buses. Choice C makes it unlikely that the bus system will lose current riders if new riders are attracted. Choice D is inappropriate since many drivers not switching to buses is entirely consistent with many people making the switch. Choice E supports the mayor’s proposal by indicating that vehicles entering the city produce most of the city’s congestion. |
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