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- 精华
- 0
- 积分
- 80
- 经验
- 80 点
- 威望
- 0 点
- 金钱
- 113 ￥
- 魅力
- 80
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难的LSAT CR，，，，有的真难
15.2. all zebras have stripes, and the most widespread subspecies has the best-defined stripes. The stripes must therefore be of importance to the species. Since among these grassland grazers the stripes can hardly function as camouflage, they must serve as some sort of signal for other zebras.
Which one of the following, if true, most strongly supports the conclusion regarding a signaling function?
(A) The subspecies of zebras with the best-defined strips is also characterized by exceptional size and vigor.
(B) In certain tall grasses zebras can be harder to spot than grazing animals with a coat of uniform color.
(C) A visual signal transmitted among the members of a species can consist of a temporary change of color perceptible to other members of the species.
(D) Zebras react much faster to moving shapes that have stripes than they do to moving shapes that are otherwise identical but lack stripes
(E) Zebras have a richer repertoire of vocal signals than do similar species such as horses.
Why The answer is D
14.4. 17. Recent research shows that hesitation, shifting posture, and failure to maintain eye contact are not reliable indicators in discriminating between those who are lying and those who are telling the truth. The research indicates that behavior that cannot be controlled is a much better clue, at least when the lie is important to the liar. Such behavior includes the dilation of eye pupils, which indicates emotional arousal, and small movements of facial muscles, which indicate distress, fear or anger.
Which one of the following provides the strongest reason for exercising caution when relying on the "better" clues mentioned above in order to discover whether someone is lying?
(A) A person who is lying might be aware that he or she is being closely observed for indications of lying
(B) Someone who is telling the truth might nevertheless have a past history of lying
(C) A practiced liar might have achieved great control over body posture and eye contact
(D) A person telling the truth might be affected emotionally by being suspected of lying or by some other aspect of the situation
(E) Someone who is lying might exhibit hesitation and shifting posture as well as dilated pupils
why the answer is D
14.2.7. It is not correct that the people of the United States, relative to comparable countries, are the most lightly taxed. True, the United States has the lowest tax, as percent of gross domestic product, of the Western industrialized countries, but tax rates alone do not tell the whole story. People in the United States pay out of pocket for many goods and services provided from tax revenues elsewhere. Consider universal health care, which is an entitlement supported by tax revenues in every other Western industrialized country. United States government health-care expenditures are equivalent to about 5 percent of the gross domestic product, but private health-care expenditures represent another 7 percent. This 7 percent, then, amounts to a tax.
The argument concerning whether the people of the United States are the most lightly taxed is most vulnerable to which one of the following criticisms?
(A) It bases a comparison on percentages rather than on absolute numbers
(B) It unreasonably extends the application of a key term
(C) It uses negatively charged language instead of attempting to give a reason
(D) It generalizes from only a few instances
(E) It sets up a dichotomy between alternatives that are not exclusive
B
Financial success does not guarantee happiness. This claim is not mere proverbial wisdom but a fact verified by statistics. In a recently concluded survey, only one-third of the respondents who claimed to have achieved financial success reported that they were happy.
Which one of the following, if true, most strongly supports the conclusion drawn from the survey results?
(A) The respondents who reported financial success were, for the most part, financially successful
(B) Financial success was once thought to be necessary for happiness but is no longer considered a prerequisite for happiness
(C) Many of the respondents who claimed not to have achieved financial success reported that they were happy five years ago
(D) Many of the respondents who failed to report financial success were in fact financially successful
(E) Most of the respondents who reported they were unhappy were in fact happy
A is the answer
22. A long-term health study that followed a group of people who were age 35 in 1950 found that those whose weight increased by approximately half a kilogram or one pound per year after the age of 35 tended, on the whole, to live longer than those who maintained the weight they had at age 35. This finding seems at variance with other studies that have associated weight gain with a host of health problems that tend to lower life expectancy.
Which one of the following, if true, most helps to resolve the apparently conflicting findings?
(A) As people age, muscle and bone tissue tends to make up a smaller and smaller proportion of total body weight.
(B) Individuals who reduce their cholesterol levels by losing weight can thereby also reduce their risk of dying from heart attacks or strokes.
(C) Smokers, who tend to be leaner than nonsmokers, tend to have shorter life spans than nonsmokers.
(D) The normal deterioration of the human immune system with age can be slowed down by a reduction in the number of calories consumed.
(E) Diets that tend to lead to weight gain often contain not only excess fat but also unhealthful concentrations of sugar and sodium.
The answer is c
22. At the end of the year, Wilson’s Department Store awards free merchandise to its top salespeople. When presented with the fact that the number of salespeople receiving these awards has declined markedly over the past fifteen years, the newly appointed president of the company responded, “In that case, since our award criterion at present is membership in the top third of our sales force, we can also say that the number of salespeople passed over for these awards has similarly declined.”
Which one of the following is an regard to hiring salespeople have not become more lax over the past fifteen years.
(A) Policies at Wilson’s with regard to hiring salespeople have not become more lax over the past fifteen years.
(B) The number of salespeople at Wilson’s has increased over the past fifteen years.
(C) The criterion used by Wilson’s for selecting its award recipients has remained the same for the past fifteen years.
(D) The average total sales figures for Wilson’s salespeople have been declining for fifteen years.
(E) Wilson’s calculates its salespeople’s sales figures in the same way as it did fifteen years ago.
c
. When deciding where to locate or relocate business look for an educated work force, a high level of services, a low business-tax rate, and close proximity to markets and raw materials. However, although each of these considerations has approximately equal importance, the lack of proximity either to markets or to raw materials often causes municipalities to lose prospective business, whereas having a higher-than-average business-tax rate rarely has this effect.
Which one of the following, if true, most helps to resolve the apparent discrepancy in the statements above?
(A) Taxes paid by business constitute only a part of the tax revenue collected by most municipalities.
(B) In general, the higher the rate at which municipalities tax businesses, the more those municipalities spend on education and on providing services to businesses.
(C) Businesses sometimes leave a municipality after that municipality has raised its taxes on businesses.
(D) Members of the work force who are highly educated are more likely to be willing to relocated to secure work than are less highly educated workers.
(E) Businesses have sometimes tried to obtain tax reductions from municipalities by suggesting that without such a reduction the business might be forced to relocate elsewhere
B |
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