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2.
Cigarette companies claim that manufacturing bothlow- and high-nicotine cigarettes allows smokers to choose how much nicotine they want. However, a recent study has shown that the levels of nicotine found in the blood of smokers who smoke one pack of cigarettes per day are identical at the end of a day’s worth of smoking, whatever the level of nicotine in the cigarettes they smoke.
Which one of the following, if true, most helps to explain the finding of the nicotine study?
(A) Blood cannot absorb more nicotine per day than that found in the smoke from a package of the lowest-nicotine cigarettes available.
Yes, in this case, it points out the level of nicotine that blood can absorb. If the amount of nicotine surpasses the threshold, blood cannot absorb more nicotine. BA
(B) Smokers of the lowest-nicotine cigarettes available generally smoke more cigarettes per day than smokers of high-nicotine cigarettes.
The argument tells us that smokers smoke one pack of cigarettes per day, so the answer choice has no effect on the discrepancy.
(C) Most nicotine is absorbed into the blood of a smoker even if it is delivered in smaller quantities.
So the level of nicotine found in the blood of smokers who smoke higher-nicotine cigarettes should be higher than that of smokers who smoke lower-nicotine cigarettes, rather than identical.
(D) The level of tar in cigarettes is higher in low-nicotine cigarettes than it is in some high-nicotine cigarettes.
The level of tar is outside the scope of the argument.
(E) When taking in nicotine by smoking cigarettes is discontinued, the level of nicotine in the blood decreases steadily.
“When taking in nicotine by smoking cigarettes is discontinued” is irrelevant.
101.(31700-!-item-!-188;#058&006145)(GWD 3-Q38/prep 2-6 different type)
Two computer companies, Garnet and Renco, each pay Salcor to provide health insurance for their employees. Because early treatment of high cholesterol can prevent strokes that would otherwise occur several years later, Salcor encourages Garnet employees to have their cholesterol levels tested and to obtain early treatment for high cholesterol. Renco employees generally remain with Renco only for a few years, however. Therefore, Salcor lacks any financial incentive to provide similar encouragement to Renco employees.
关键还是结论！
Which of the following, if true, most seriously weakens the argument?
A. Early treatment of high cholesterol does not eliminate the possibility of a stroke later in life.
Actually, this answer choice strengthens the argument by showing that the early treatment has not great benefit.
B. People often obtain early treatment for high cholesterol on their own.
This answer choice has no effect on the argument.
C. Garnet hires a significant number of former employees of Renco.
So it should be inferred that Garnet need to provide such health insurance, rather than Renco.
看来是我理解错了，这里不能只是单纯地比较G和R，还要考虑到S。S鼓励G提供医疗测试，目的就是为了以后少赔偿，因为S是保险公司。而结论说，S没有动力去鼓励R进行类似的测试。所以，如果S以后要赔给G的钱更多，那么S还是有动力去说服R的！
D. Renco and Garnet have approximately the same number of employees.
The number of employees cannot weaken the argument.
E. Renco employees are not, on average, significantly younger than Garnet employees.
Yes, since we can know that strokes occur several years later, Renco’s older employees have more opportunities to obtain such disease. BA
可是也没有说R的员工就比G的要老很多，而且R员工的工作年限不长
first of all, there's no indication of the actual age at which these cholesterol problems tend to manifest (if there is even a characteristic age at all), and, second, we do not know whether the employees of either firm are anywhere near that age. from this choice, we only know about the relative difference between their ages, not about whether those ages are anywhere near the threshold at which cholesterol-related conditions start to make a difference.From Manhattan
102.(29392-!-item-!-188;#058&004074)(GWD 1-Q15)
In parts of South America, vitamin-A deficiency is a serious health problem, especially among children. In one region, agriculturists hope to improve nutrition by encouraging farmers to plant a new variety of sweet potato called SPK004 that is rich in betacarotene, which the body converts into vitamin A. The plan has good chances of success, since sweet potato is a staple of the region’s diet and agriculture, and the varieties currently grown contain little beta-carotene.
Which of the following, if true, most strongly supports the prediction that the plan will succeed?
A. There are other vegetables currently grown in the region that contain more beta-carotene than the currently cultivated varieties of sweet potato do.
Why do not grow these vegetables that contain more beta-carotene? It cannot support the plan.
B. The flesh of SPK004 differs from that of the currently cultivated sweet potatoes in color and texture, so traditional foods would look somewhat different when prepared from SPK004.
Actually, this answer choice may weaken the plan, since the food may be not attractive with SPK004.
C. For successful cultivation of SPK004, a soil significantly richer in nitrogen is needed than is needed for the varieties of sweet potato currently cultivated in the region.
This, in fact, weakens the success of the plan, since the soil should have more nitrogen.
D. There are no other varieties of sweet potato that are significantly richer in beta-carotene than SPK004 is.
It seems to be attractive, but a more thorough analysis reveals that the comparison is irrelevant, since the plan is about SPK004, rather than other sweet potato. Besides, we know that the varieties currently grown contain little beta-carotene.
E. The currently cultivated varieties of sweet potato contain no important nutrients that SPK004 lacks.
Yes, in this case, it rules out a potential weakness of SPK004. BA
103.(31044-!-item-!-188;#058&005684)(GWD 6-Q28)
Which of the following most logically completes the argument below?
According to promotional material published by the city of Springfield, more tourists stay in hotels in Springfield than stay in the neighboring city of Harristown. A brochure from the largest hotel in Harristown claims that more tourists stay in that hotel than stay in the Royal Arms Hotel in Springfield. If both of these sources are accurate, however, the “Report on Tourism” for the region must be in error in stating that __________.
We should make clear that Springfield and Harristown are both cities, and the comparison is about hotels.
A. the average length of stay is longer at the largest hotel in Harristown than it is at the Royal Arms Hotel
The average length of stay is irrelevant.
B. there is only one hotel in Harristown that is larger than the Royal Arms Hotel
The size is irrelevant.
C. more tourists stay in hotels in Harristown than stay in the Royal Arms Hotel
Since the largest hotel in Harristown has more tourists than the Royal Arms Hotel has, this answer choice is not wrong.
D. the Royal Arms Hotel is the largest hotel in Springfield
The size is irrelevant.
E. the Royal Arms Hotel is the only hotel in Springfield
Yes, in this case, if we understand the first source as that the Royal Arms Hotel has more tourists than the city of Harristown has, the argument would be contradictory. BA
104.(24883-!-item-!-188;#058&001256)(GWD 5-Q38)
Nitrogen dioxide is a pollutant emitted by automobiles. Catalytic converters, devices designed to reduce nitrogen dioxide emissions, have been required in all new cars in Donia since 1993, and as a result, nitrogen dioxide emissions have been significantly reduced throughout most of the country. Yet although the proportion of new cars in Donia's capital city has always been comparatively high, nitrogen dioxide emissions there have showed only an insignificant decline since 1993.
Which of the following, if true, most helps to explain the insignificant decline in nitrogen dioxide emissions in Donia's capital city?
A. More of the cars in Donia's capital city were made before 1993 than after 1993.
But the argument refers that the proportion of new cars in Donia’s capital city has always been comparatively high.
B. The number of new cars sold per year in Donia has declined slightly since 1993.
The same to A, it cannot resolve the discrepancy.
C. Pollutants other than nitrogen dioxide that are emitted by automobiles have also been significantly reduced in Donia since 1993.
Pollutants other than nitrogen dioxide are outside the scope of the argument.
D. Many Donians who own cars made before 1993 have had catalytic converters installed in their cars.
But the argument points out that as a result, nitrogen dioxide emissions have been significantly reduced throughout most of the country. If the answer is true, the argument would be more contradictory.
E. Most car trips in Donia's capital city are too short for the catalytic converter to reach its effective working temperature.
Yes, in this case, even though new cars have been equipped with the catalytic converters, the nitrogen dioxide emissions cannot be reduced significantly. BA
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发表于 2012-1-25 20:09:53
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