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GWD It can be inferred from the passage that the author
OG2022 Often patients with ankle fractures that are stable, and thus do not require surgery, are given follow-up x-rays because their orthopedists are concerned about possibly having misjudged the stability of the fracture. When a number of follow-up x-rays were reviewed, however, all the fractures that had initially been judged stable were found to have healed correctly. Therefore, it is a waste of money to order follow-up x-rays of ankle fracture initially judged stable. Which of the following, if true, most strengthens the argument?
OG19-语文分册 OG20-语文分册 Conventional wisdom suggests vaccinating elderly people first in flu season, because they are at greatest risk of dying if they contract the virus. This year's flu virus poses particular risk to elderly people and almost none at all to younger people, particularly children. Nevertheless, health professionals are recommending vaccinating children first against the virus rather than elderly people. Which of the following, if true, provides the strongest reason for the health professionals' recommendation?
Automobile manufacturers defend their substitution of steel frames in cars with cheaper plastic components by claiming that consumer demand is ruled by a desire for light cars with crumple zones rather than as a result of corporate profit motives. However, if this trend were true, then carbon reinforced tubing, which is lighter than steel and stronger, would be available as an option. It is not.Which of the following, if true, best explains how the automobile manufacturers" claim about consumer desire for lighter and stronger materials could be true and maintain the exclusion of carbon tubing from the market?
Ready4

Male cowbirds sing a variety of types of songs, demonstrating a wide range of vocal capabilities. Basing their judgment on the fact that different local populations of cowbirds of the same species sing in styles particular to their populations, ornithologists have concluded that the cowbirds' singing styles are culturally acquired, rather than genetically transmitted.

Which of the following, if true, would most strengthen the conclusion drawn by the ornithologists?
OG12 OG15 The difficulty with the proposed high-speed train line is that a used plane can be bought for one-third the price of the train line, and the plane, which is just as fast, can fly anywhere. The train would be a fixed linear system, and we live in a world that is spreading out in all directions and in which consumers choose the freewheel systems (cars, buses, aircraft), which do not have fixed routes. Thus a sufficient market for the train will not exist.Which of the following, if true, most severely weakens the argument presented above?
Statistics show that although consumption of low-calorie, alternative sweeteners has gone up in each of the past five years, so has the percentage of the population that is obese. According to sugar manufacturers, this shows that the low-calorie, alternative sweeteners are not effective weight loss aids.Which of the following assertions, if true, would most weaken the sugar manufacturers' conclusion?
PREP2012 According to the theory and research discussed in the first paragraph of the passage, which of the following may be true of firms that use teams to develop their strategic plans?
Ready4

Increasing the prices of retail products and reducing the number of franchise locations are the two solutions Mighty-Mart can enact to substantially increase profit margins. Increasing the prices of products will produce more money through revenue than closing franchise locations will save in reduced real estate costs. Thus, increasing the prices of retail products is the most Mighty-Mart can do to improve its profit margins.

Which of the following is an assumption on which the argument depends?
Ready4

A legal service bills p dollars for the first hour of service on a task and q dollars for each additional hour, where p>q. If the client requires a specific number of hours h of service, how does the amount billed to the client change if the work is broken up into n tasks rather than one task?
OG15 OG16 OG17 OG18 OG19 Which of the following most logically completes the argument below?Using broad-spectrum weed killers on weeds that are competing with crops for sunlight, water, and nutrients presents a difficulty: how to keep the crop from being killed along with the weeds. For at least some food crops, specially treated seed that produces plants resistant to weed killers is under development. This resistance wears off as the plants mature. Therefore, the special seed treatment will be especially useful for plants that ______.
Ready4

It can be inferred from the passage that the airlines most negatively affected by fuel price increases are those for whom which of the following is true?
Nuclear fusion is the force that powers the Sun, the stars, and hydrogen bombs, merging the nuclei of atoms and not splitting them apart, as in nuclear reactors.
The primary purpose of the passage is to
OG15 OG16 OG17 The following was excerpted from an article in a farming trade publication:"Farmers who switched from synthetic to organic farming last year have seen their crop yields decline. Many of these farmers feel that it would be too expensive to resume synthetic farming at this point, given the money that they invested in organic farming supplies and equipment. But their investments will be relatively minor compared to the losses from continued lower crop yields. Organic farmers should switch to synthetic farming rather than persist in an unwise course. And the choice to farm organically is financially unwise, given that it was motivated by environmental rather than economic concerns."Discuss how well reasoned you find this argument. In your discussion be sure to analyze the line of reasoning and the use of evidence in the argument. For example, you may need to consider what questionable assumptions underlie the thinking and what alternative explanations or counterexamples might weaken the conclusion. You can also discuss what sort of evidence would strengthen or refute the argument, what changes in the argument would make it more logically sound, and what, if anything, would help you better evaluate its conclusion.
PREP08 Test 2 Technological improvements and reduced equipment costs have made converting solar energy directly into electricity far more cost-efficient in the last decade. However, the threshold of economic viability for solar power (that is, the price per barrel to which oil would have to rise in order for new solar power plants to be more economical than new oil-fired power plants) is unchanged at thirty-five dollars.Which of the following, if true, does most to help explain why the increased cost-efficiency of solar power has not decreased its threshold of economic viability?
PREP08 Test 1 Which of the following best describes the attitude of the first six Presidents toward political parties as it is discussed in the passage?
Lists of hospitals have been compiled showing which hospitals have patient death rates exceeding the national average. The data have been adjusted to allow for differences in the ages of patients.Each of the following, if true, provides a good logical ground for hospitals to object to interpreting rank on these lists as one of the indices of the quality of hospital care EXCEPT:
In an attempt to promote the widespread use of paper rather than plastic, and thus reduce non-biodegradable waste, the council of a small town plans to ban the sale of disposable plastic goods for which substitutes made of paper exist.The council argues that since most paper is entirely biodegradable, paper goods are environmentally preferable.Which of the following, if true, indicates that the plan to ban the sale of disposable plastic goods is ill suited to the town council's environmental goals?
GWD PREP2012 Which of the following most logically completes the passage below?Heavy rains during Centralia's corn planting season prevented some farmers there from planting corn. It is now the planting season for soybeans, another of Centralia's principal crops, and those fields originally intended for corn are dry enough for planting. Nonetheless, even though soybean prices are unusually high at present, the farmers will leave most of these fields empty rather than plant them with soybeans, since________.