削弱题-CR-PREP 07 test2：第21-30题 练习册详情

1

Downtown Villieu was once a flourishing business district, but most Villieu-area businesses are now located only in the suburbs. The office buildings downtown lack the modern amenities most business operators demand today. To lure more businesses downtown, Villieu officials plan to have several modern office buildings constructed and to offer reduced local tax rates to any business that leases space in a new downtown building.

Which of the following, if true, most threatens the plan's likelihood of success?

• Most of the businesses currently located in downtown Villieu have long-term leases on the space they occupy there.
• The existing office buildings in downtown Villieu have, on average, a much higher vacancy rate than do office buildings in Villieu's suburbs.
• The local tax rates in Villieu's suburbs are significantly lower than downtown Villieu's proposed rate for businesses that lease space in the new office buildings.
• Most of the businesses that currently lease office space in downtown Villieu also lease office space in Villieu's suburbs.
• With the new office buildings, downtown Villieu would have a greater amount of modern office space than any other downtown business district in the region.

9987人做过此题 平均耗时为14min38s 平均正确率为 43%

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2

Beta Corporation claims that it no longer has enough work for the 60 computer data-entry workers that it is laying off. These workers have heard, however, that the company is buying 100 new computers. So the workers concluded that the company's real reason for laying them off is to fill their jobs with lower-paid workers.

Which of the following, if true, would most undermine the workers' conclusion?

• Most of the workers being laid off know how to enter data on a number of different computer systems.
• Orders for almost all of Beta Corporation products have increased over the past year.
• A recent memorandum from the president of Beta Corporation requested that all data generated by the company be stored in computerized form.
• Beta Corporation's computer data-entry workers are more experienced and hence more highly paid than people doing comparable work in other companies.
• Beta Corporation's new computers will allow its current management and sales staff to perform many of the tasks that the data-entry workers were previously doing.

9965人做过此题 平均耗时为17min38s 平均正确率为 54%

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3

Some airlines allegedly reduce fares on certain routes to a level at which they lose money, in order to drive competitors off those routes. However, this method of eliminating competition cannot be profitable in the long run. Once an airline successfully implements this method, any attempt to recoup the earlier losses by charging high fares on that route for an extended period would only provide competitors with a better opportunity to undercut the airline's fares.

Which of the following, if true, most seriously weakens the argument?

• In some countries it is not illegal for a company to drive away competitors by selling a product below cost.
• Airline executives generally believe that a company that once underpriced its fares to drive away competitors is very likely to do so again if new competitors emerge.
• As part of promotions designed to attract new customers, airlines sometimes reduce their ticket prices to below an economically sustainable level.
• On deciding to stop serving particular routes, most airlines shift resources to other routes rather than reduce the size of their operations.
• When airlines dramatically reduce their fares on a particular route, the total number of air passengers on that route increases greatly.

9983人做过此题 平均耗时为15min32s 平均正确率为 51%

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4

At present the Hollywood Restaurant has only standard-height tables. However, many customers come to watch the celebrities who frequent the Hollywood, and they would prefer tall tables with stools because such seating would afford a better view of the celebrities. Moreover, diners seated on stools typically do not stay as long as diners seated at standard-height tables. Therefore, if the Hollywood replaced some of its seating with high tables and stools, its profits would increase.
The argument is vulnerable to criticism on the grounds that it gives reason to believe that it is likely that

• some celebrities come to the Hollywood to be seen, and so might choose to sit at the tall tables if they were available
• the price of meals ordered by celebrities dining at the Hollywood compensates for the longer time, if any, they spend lingering over their meals
• a customer of the Hollywood who would choose to sit at a tall table would be an exception to the generalization about lingering
• a restaurant's customers who spend less time at their meals typically order less expensive meals than those who remain at their meals longer
• with enough tall tables to accommodate all the Hollywood's customers interested in such seating, there would be no view except of other tall tables

9975人做过此题 平均耗时为7min37s 平均正确率为 58%

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5

Herbicides allow cereal crops to be grown very efficiently, with virtually no competition from weeds. In Britain, partridge populations have been steadily decreasing since herbicide use became widespread. Some environmentalists claim that these birds, which live in and around cereal crop fields, are being poisoned by the herbicides. However, tests show no more than trace quantities of herbicides in partridges on herbicide-treated land. Therefore, something other than herbicide use must be responsible for the population decrease.

Which of the following, if true about Britain, most seriously weakens the argument?

• The elimination of certain weeds from cereal crop fields has reduced the population of the small insects that live on those weeds and that form a major part of partridge chicks' diet.
• Since partridges are valued as game birds, records of their population are more carefully kept than those for many other birds.
• Some of the weeds that are eliminated from cereal crop fields by herbicides are much smaller than the crop plants themselves and would have no negative effect on crop yield if they were allowed to grow.
• Birds other than partridges that live in or around cereal crop fields have also been suffering population declines.
• The toxins contained in herbicides typically used on cereal crops can be readily identified in the tissues of animals that have ingested them.

9979人做过此题 平均耗时为14min26s 平均正确率为 64%

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6

An advertising agency must leave its office building. To save overhead costs, it is considering setting up a "virtual office" instead of moving to an adjacent office building. Employees will do their work on computers, as they do now, but will do so at home, sharing their work with colleagues by communicating text and designs to colleagues' computers through telephone lines, receiving typed comments, and then revising the work until it is satisfactory.

Which of the following, if true, indicates a disadvantage of the virtual office plan?

• The agency can move its computers and associated equipment into employees' homes without purchasing any new equipment or requiring employees to purchase such equipment.
• To reach the current office building and return home, employees spend an average of one and a half hours per day commuting, usually in heavy traffic.
• The employees of the advertising agency are accustomed to autonomy in monitoring their own progress and productivity.
• Employees would be able to adapt quickly to using computers in a virtual office setting, since employees' current use of computers to produce designs requires a high level of skill.
• Expressions and gestures in face-to-face exchanges are an important aid to employees in gauging the viability of new ideas they have proposed.

6181人做过此题 平均耗时为6min1s 平均正确率为 61%

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7

Traveler: Southern Airways has a far worse safety record than Air Dacentaria over the past few years, in terms of both the frequency of accidents and the severity of accidents. Therefore, although Air Dacentaria is slightly more expensive, I will choose it over Southern Airways for my flight from Pederton to Dacenta, since it is worth paying extra to have a safer flight.

Which of the following, if true, casts the most serious doubt on the traveler's argument?

• Air Dacentaria's flight from Pederton to Dacenta is nonstop, whereas Southern Airways' flight touches down in Gorinda on the way.
• Most Southern Airways flights, but not its flight from Pederton to Dacenta, use Sarmouth airport, which because of its mountainous location is one of the world's most dangerous.
• For its flights from Pederton to Dacenta, Southern Airways uses a different model of airplane, with a smaller capacity, than the model Air Dacentaria uses for its flights on the same route.
• Only in the last few years has the cost of flying from Pederton to Dacenta been more expensive on Air Dacentaria than on Southern Airways.
• Although the frequency of accidents is greater on Southern Airways, on both airlines the proportion of flights that have accidents is very small.

5877人做过此题 平均耗时为7min4s 平均正确率为 54%

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8

The recent decline in the value of the dollar was triggered by a prediction of slower economic growth in the coming year. But that prediction would not have adversely affected the dollar had it not been for the government's huge budget deficit, which must therefore be decreased to prevent future currency declines.

Which of the following, if true, would most seriously weaken the conclusion about how to prevent future currency declines?

• The government has made little attempt to reduce the budget deficit.
• The budget deficit has not caused a slowdown in economic growth.
• The value of the dollar declined several times in the year prior to the recent prediction of slower economic growth.
• Before there was a large budget deficit, predictions of slower economic growth frequently caused declines in the dollar's value.
• When there is a large budget deficit, other events in addition to predictions of slower economic growth sometimes trigger declines in currency value.

6585人做过此题 平均耗时为8min36s 平均正确率为 66%

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9

The more frequently employees take time to exercise during working hours each week, the fewer sick days they take. Even employees who exercise only once a week during working hours take less sick time than those who do not exercise. Therefore, if companies started fitness programs, the absentee rate in those companies would decrease significantly.

Which of the following, if true, most seriously weakens the argument above?

• Employees who exercise during working hours occasionally fall asleep for short periods of time after they exercise.
• Employees who are frequently absent are the least likely to cooperate with or to join a corporate fitness program.
• Employees who exercise only once a week in their company's fitness program usually also exercise after work.
• Employees who exercise in their company's fitness program use their working time no more productively than those who do not exercise.
• Employees who exercise during working hours take slightly longer lunch breaks than employees who do not exercise.

6274人做过此题 平均耗时为4min38s 平均正确率为 42%

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10

Recently a court ruled that current law allows companies to reject a job applicant if working in the job would entail a 90 percent chance that the applicant would suffer a heart attack. The presiding judge justified the ruling, saying that it protected both employees and employers.

The use of this court ruling as part of the law could not be effective in regulating employment practices if which of the following were true?

• The best interests of employers often conflict with the interests of employees.
• No legally accepted methods exist for calculating the risk of a job applicant's having a heart attack as a result of being employed in any particular occupation.
• Some jobs might involve health risks other than the risk of heart attack.
• Employees who have a 90 percent chance of suffering a heart attack may be unaware that their risk is so great.
• The number of people applying for jobs at a company might decline if the company, by screening applicants for risk of heart attack, seemed to suggest that the job entailed high risk of heart attack.

7016人做过此题 平均耗时为5min43s 平均正确率为 48%

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