• 按书本查看

PREP 2012

GMAT官方免费提供了GMAT模考软件GMATPrep，其界面与真实考试完全相同，但是我们只能做两套模拟题。有前辈发现GMATPrep中事实上内置了一个很大的题库，Prep破解即前辈从GMATPrep中还原出来的完整题库，全部属于真题，且有标准答案，是分项突破时很好的练习材料。 PREP2012是最新破解的版本，包含CR题目 75 题。

1 According to the Tristate Transportation Authority, making certain improvements to the main commuter rail line would increase ridership dramatically. The authority plans to finance these improvements over the course of five years by raising automobile tolls on the two highway bridges along the route the rail line serves. Although the proposed improvements are indeed needed, the authority's plan for securing the necessary funds should be rejected because it would unfairly force drivers to absorb the entire cost of something from which they receive no benefit.Which of the following, if true, would cast the most doubt on the effectiveness of the authority's plan to finance the proposed improvements by increasing bridge tolls?
2 Roland: The alarming fact is that 90 percent of the people in this country now report that they know someone who is unemployed. Sharon: But a normal, moderate level of unemployment is 5 percent, with 1 out of 20 workers unemployed. So at any given time if a person knows approximately 50 workers, one or more will very likely be unemployed.Sharon's argument is structured to lead to which of the following as a conclusion?
3 Guitar strings often go "dead"-become less responsive and bright in tone-after a few weeks of intense use. A researcher whose son is a classical guitarist hypothesized that dirt and oil, rather than changes in the material properties of the string, were responsible.Which of the following investigations is most likely to yield significant information that would help evaluate the researcher's hypothesis?
4 Increases in the level of high-density lipoprotein (HDL)in the human bloodstream lower bloodstream cholesterol levels by increasing the body's capacity to rid itself of excess cholesterol. Levels of HDL in the bloodstream of some individuals are significantly increased by a program of regular exercise and weight reduction.Which of the following can be correctly inferred from the statements above?
5 In Asia, where palm trees are nonnative, the trees flowers have traditionally been pollinated by hand, which has kept palm fruit productivity unnaturally low. When weevils known to be efficient pollinators of palm flowers were introduced into Asia in 1980, palm fruit productivity increased-by up to 50 percent in some areas-but then decreased sharply in 1984.Which of the following statements, if true, would best explain the 1984 decrease in productivity?
6 Which of the following best completes the passage below?People buy prestige when they buy a premium product. They want to be associated with something special. Mass-marketing techniques and price-reduction strategies should not be used because_____.
7 Reviewer: The book Art's Decline argues that European painters today lack skills that were common among European painters of preceding centuries. In this the book must be right, since its analysis of 100 paintings, 50 old and 50 contemporary, demonstrates convincingly that none of the contemporary paintings are executed as skillfully as the older paintings.Which of the following points to the most serious logical flaw in the reviewer's argument?
8 Many breakfast cereals are fortified with vitamin supplements. Some of these cereals provide 100 percent of the recommended daily requirement of vitamins. Nevertheless, a well-balanced breakfast, including a variety of foods, is a better source of those vitamins than are such fortified breakfast cereals alone.Which of the following, if true, would most strongly support the position above?
9 Plant scientists have used genetic engineering on seeds to produce crop plants that are highly resistant to insect damage. Unfortunately, the plants require more fertilizer and water togrow well than normal ones do, and the seeds themselves are quite expensive, and for most farmers the savings on pesticides would not compensate for the higher seed costs and the cost of additional fertilizer. However, since consumer demand for grains, fruits, and vegetables grown without the use of pesticides continues to rise, the use off genetically engineered seeds of this kind is likely to become widespread.In the argument given, the two portions in boldface play which of the following roles?
10 Paper&Print is a chain of British stores selling magazines, books, and stationery products. In Britain, magazines' retail prices are set by publishers, and the retailer's share of a magazine's retail price is 25 percent. Since Paper&Print's margin on books and stationery products is much higher, the chain's management plans to devote more of its stores' shelf space to books and stationery products and reduce the number of magazine titles that its stores carry.Which of the following, if true, most strongly argues that the plan, if put into effect, will not increase Paper&Print's profits?
11 An influential stock analyst recommends the purchase of three infrequently traded stocks in each of his weekly magazine columns. Unusually large amounts of these stocks are often purchased one day before the magazine appears on the newsstands. This pattern has recurred over a period.Suppose that the information presented above is accurate. Each of the following statements, if true, could help to explain why the unusually large purchases occurred EXCEPT:
12 The faster a car is traveling, the less time the driver has to avoid a potential accident, and if a car does crash, higher speeds increase the risk of a fatality. Between 1995 and 2000, average highway speeds increased significantly in the United States, yet, over that time, there was a drop in the number of car-crash fatalities per highway mile driven by cars.Which of the following, if true about the United States between 1995 and 2000, most helps to explain why the fatality rate decreased in spite of the increase in average highway speeds?
13 Traces of cultivated emmer wheat have been found among the earliest agricultural remains of many archaeological sites in Europe and Asia. The only place where the wild form of emmer wheat has been found growing is a relatively narrow strip of southwest Asia. Since the oldest remains of cultivated emmer wheat yet found are from village sites in the same narrow strip, it is clear that emmer wheat was first domesticated somewhere in that strip.Which of the following, if true, most strengthens the argument?
14 The Acme Corporation has found that improvements in its information technology infrastructure allow its employees to make more decisions that are both sound and well-informed than was previously feasible. Consequently, the corporation plans to improve employee productivity by introducing new managerial techniques that delegate much of the decision-making to lower levels of the organizational hierarchy. Managers will simply set clear standards and guidelines and then allow employee teams to undertake tasks without centralized control.Which of the following, if true, would most strongly support a prediction that the Acme Corporation's plan will achieve its goal?
15 The recent rise of low-cost airlines in Country Y has led to great increases in the number of air travelers and flights. However, a "hidden cost" of flying and certain other forms of travel is the significant amount of air pollution, which contributes to global warming. To make people pay these hidden costs-and in the process discourage the explosive growth in flying-the government of Country Y plans to impose fees on all air travel. There is a problem, however, in that many residents of Country Y would then use automobile transportation instead, without paying the hidden costs of the resulting air pollution.Which of the following additions to the government's plan would be likely to help most in overcoming the problem referred to in the final sentence above?
16 Fashion company executive: The number of competing brands of clothing is increasing much more quickly than is consumer demand for new clothing. As a result, it is becoming ever more for our clothing company to keep consumers focused on our products. To increase our sales, therefore, our company plans to introduce innovative, eye-catching lines of clothing much more frequently.To evaluate whether the plan described by the executive would be likely to achieve its goal, it would be most useful to know which of the following?
17 A physically active lifestyle has been shown to help increase longevity. In the Wistar region of Bellaria, the average age at death is considerably higher than in any other part of the country. Wistar is the only mountainous part of Bellaria. A mountainous terrain makes even such basic activities as walking relatively strenuous; it essentially imposes a physically active lifestyle on people. Clearly, this circumstance explains the long lives of people in Wistar.Which of the following, if true, most seriously weakens the argument?
18 Airport official: Local residents have been complaining that night flights into Plainsville airport disturb their sleep and should be sharply reduced in number. This complaint is completely unreasonable-there have been night flights coming into the airport from the very beginning, twenty years ago, and these residents should have taken that fact into account when buying their homes.Which of the following is an assumption on which the airport argument depends?
19 Paper and plastic grocery bags are a continuing problem for the city, both as litter and in landfills. To discourage their use, the city has proposed a tax on each bag, to be paid by the supermarkets that supply them. Several environmental groups, however, oppose the tax, despite having brought the issue to the council's attention in the first place.Which of the following, if true, would best explain the environmental groups opposition to the proposed tax?
20 Public health official: Some researchers suspect that magnetic fields from high-voltage power lines can cause health problems for people who live especially near the lines. However, this is extremely unlikely: beyond a distance of a few feet, the strength of the magnetic fields from high-voltage power lines is less than the average strength of magnetic fields in homes that are not located near such lines.Which of the following would it be most useful to establish in order to evaluate the public health argument?

9362

3311335

1205325940

• [IR]13fm3k

正确率：3.6%

• [IR]1dfnkk

正确率：5.9%

• [DS]34g0kk

正确率：6.3%

• [IR]acfnlk

正确率：7%

• [IR]2ffmnk

正确率：7%