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Although the discount stores in Goreville’s central shopping district are expected to close within five years as a result of competition from a SpendLess discount department store that just opened, those locations will not stay vacant for long. In the five years since the opening of Colson’s, a nondiscount department store, a new store has opened at the location of every store in the shopping district that closed because it could not compete with Colson’s.
Which of the following, if true, most seriously weakens the argument?
A。Many customers of Colson’s are expected to do less shopping there than they did before the SpendLess store opened.
B。Increasingly, the stores that have opened in the central shopping district since Colson’s opened have been discount stores.
C。At present, the central shopping district has as many stores operating in it as it ever had.
D。Over the course of the next five years, it is expected that Goreville’s population will grow at a faster rate than it has for the past several decades.
E。Many stores in the central shopping district sell types of merchandise that are not available at either SpendLess or Colson’s.
答案选B，我选E
那些商店买的东东是很unique的，这就是竞争优势，不会倒闭，不对么？
B又是什么玩艺？
Q20:
During the past year, Pro-Tect Insurance Company’s total payouts on car-theft claims were larger than the company can afford to sustain. Pro-Tect cannot reduce the number of car-theft policies it carries, so cannot protect itself against continued large payouts that way. Therefore, Pro-Tect has decided to offer a discount to holders of car-theft policies whose cars have antitheft devices. Many policyholders will respond to the discount by installing antitheft devices, since the amount of the discount will within two years typically more than cover the cost of installation. Thus, because cars with antitheft devices are rarely stolen, Pro-Tect’s plan is likely to reduce its annual payouts.
In the argument above, the two portions in boldface play which of the following roles?
The first rules out a certain strategy for achieving a goal; the second presents the strategy that was adopted instead and whose effectiveness the argument assesses.
The first is a judgment made in support of a certain conclusion; the second is that conclusion.
The first has been used as a consideration to support adopting a certain strategy for achieving a goal; the second reports a decision to adopt an alternative strategy.
The first provides evidence in favor of adopting a certain strategy for achieving a goal; the second reports a decision to pursue an alternative goal.
The first is a consideration offered against adopting a certain strategy for achieving a goal; the second is the main conclusion that the argument is seeking to establish.
答案选A，我选C
Q27:
In parts of the Caribbean, the manatee, an endangered marine mammal, has long been hunted for its meat. Having noted the manatee hunters’ expert knowledge of manatees’ habits, local conservationists are encouraging the hunters to stop hunting and instead to take tourists on boat rides to see manatees. Tourist interest is high, so the plan has promise of achieving the twin goals of giving the former hunters a good income and helping ensure the manatees’ survival.
Which of the following, if true, raises the most serious doubt about the plan’s chance of success?
Many tourists who visit these parts of the Caribbean are uninterested in manatees and would not be willing to pay what the former manatee hunters would have to charge for boat rides to see manatees.
Recovery of the species would enable some hunting to continue without putting the manatees’ survival in jeopardy again.
In areas where manatees have traditionally been hunted for food, local people could easily replace the manatee meat in their diets with other foods obtained from the sea.
There would not be enough former manatee hunters to act as guides for all the tourists who want to see manatees.
To maintain their current income, manatee hunters who switched to guiding tourists would have to use far larger boats and make many more trips into the manatees’ fragile habitat than they currently do.
答案选E，我选C。C中讲的是吃manatees是当地人的本性，和收入没有关系，不是削弱了结论么？E讲的是啥子？
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发表于 2006-2-8 01:18:00
