问答

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[Critical Reasoning]

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题目：

Five years ago, as part of a plan to encourage citizens of Levaska to increase the amount of money they put into savings, Levaska's government introduced special savings accounts in which up to $3,000 a year can be saved with no tax due on the interest unless money is withdrawn before the account holder reaches the age of sixty-five.  Millions of dollars have accumulated in the special accounts, so the government's plan is obviously working.
 
Which of the following, if true, most seriously weakens the argument?

选项:

A、A substantial number of Levaskans have withdrawn at least some of the money they had invested in the special accounts.
B、Workers in Levaska who already save money in long-term tax-free accounts that are offered through their workplace cannot take advantage of the special savings accounts introduced by the government.
C、The rate at which interest earned on money deposited in regular savings accounts is taxed depends on the income bracket of the account holder.
D、Many Levaskans who already had long-term savings have steadily been transferring those savings into the special accounts.
E、Many of the economists who now claim that the government's plan has been successful criticized it when it was introduced.

答案:

D
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[Critical Reasoning]

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题目：

Rye sown in the fall and plowed into the soil in early spring leaves a residue that is highly effective at controlling broad-leaved weeds, but unfortunately for only about 45 days.  No major agricultural crop matures from seed in as little as 45 days.  Synthetic herbicides, on the other hand, although not any longer-lasting, can be reapplied as the crop grows.  Clearly, therefore, for major agricultural crops, plowing rye into the soil can play no part in effective weed control.
 
The argument is most vulnerable to the objection that it fails to

选项:

A、consider that there might be minor, quick-growing crops that do mature in 45 days or less
B、identify any alternative method of weed control that could be used instead of the method it rejects
C、distinguish among the various kinds of synthetic herbicides
D、allow for the possibility of combining the two weed-control methods it mentions
E、allow for the possibility that plants other than rye, handled the same way, might have the same effect

答案:

D
5答疑

[Reading Comprehension]

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文章：

    In corporate purchasing, competitive scrutiny is typically limited to suppliers of items that are directly related to end products. With "indirect" purchases (such as computers, advertising, and legal services), which are not directly related to production, corporations often favor "supplier partnerships" (arrangements in which the purchaser forgoes the right to pursue alternative suppliers), which can inappropriately shelter suppliers from rigorous competitive scrutiny that might afford the purchaser economic leverage. There are two independent variables-availability of alternatives and ease of changing suppliers-that companies should use to evaluate the feasibility of subjecting suppliers of indirect purchases to competitive scrutiny. This can create four possible situations.

    In Type 1 situations, there are many alternatives and change is relatively easy. Open pursuit of alternatives-by frequent competitive bidding, if possible-will likely yield the best results. In Type 2 situations, where there are many alternatives but change is difficult-as for providers of employee health-care benefits-it is important to continuously test the market and use the results to secure concessions from existing suppliers. Alternatives provide a credible threat to suppliers, even if the ability to switch is constrained. In Type 3 situations, there are few alternatives, but the ability to switch without difficulty creates a threat that companies can use to negotiate concessions from existing suppliers. In Type 4 situations, where there are few alternatives and change is difficult, partnerships may be unavoidable.

题目：

Which of the following can be inferred about supplier partnerships, as they are described in the passage?

选项:

A、They cannot be sustained unless the goods or services provided are available from a large number of suppliers.
B、They can result in purchasers paying more for goods and services than they would in a competitive-bidding situation.
C、They typically are instituted at the urging of the supplier rather than the purchaser.
D、They are not feasible when the goods or services provided are directly related to the purchasers' end products.
E、They are least appropriate when the purchasers' ability to change suppliers is limited.

答案:

B
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[Sentence Correction]

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题目：

Because an oversupply of computer chips has sent prices plunging, the manufacturer has announced that it will cut production by closing its factories for two days a month.

选项:

A、Because an oversupply of computer chips has sent prices plunging,
B、Because of plunging prices for computer chips, which is due to an oversupply,
C、Because computer chip prices have been sent plunging, which resulted from an oversupply,
D、Due to plunging computer chip prices from an oversupply,
E、Due to an oversupply, with the result that computer chip prices have been sent plunging,

答案:

A
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[Critical Reasoning]

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题目：

In the country of Marut, the Foreign Trade Agency’s records were reviewed in 1994 in light of information then newly available about neighboring Goro. The review revealed that in every year since 1963, the agency’s projection of what Goro’s gross national product (GNP) would be five years later was a serious underestimate. The review also revealed that in every year since 1963, the agency estimated Goro’s GNP for the previous year—a Goro state secret—very accurately.

Of the following claims, which is most strongly supported by the statements given?

选项:

A、Goro’s GNP fluctuated greatly between 1963 and 1994.
B、Prior to 1995, Goro had not released data intended to mislead the agency in making its five-year projections.
C、The amount by which the agency underestimated the GNP it projected for Goro tended to increase over time.
D、Even before the new information came to light, the agency had reason to think that at least some of the five-year projections it had made were inaccurate.
E、The agency’s five-year projections of Goro’s GNP had no impact on economic planning in Marut.

答案:

D
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[Critical Reasoning]

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题目：

Between 1980 and 2000 the sea otter population of the Aleutian Islands declined precipitously. There were no signs of disease or malnutrition, so there was probably an increase in the number of otters being eaten by predators. Orcas will eat otters when seals, their normal prey, are unavailable, and the Aleutian Islands seal population declined dramatically in the 1980s. Therefore, orcas were most likely the immediate cause of the otter population decline.

Which of the following, if true, most strengthens the argument?

选项:

A、The population of sea urchins, the main food of sea otters, has increased since the sea otter population declined.
B、Seals do not eat sea otters, nor do they compete with sea otters for food.
C、Most of the surviving sea otters live in a bay that is inaccessible to orcas.
D、The population of orcas in the Aleutian Islands has declined since the 1980s.
E、An increase in commercial fishing near the Aleutian Islands in the 1980s caused a slight decline in the population of the fish that seals use for food.

答案:

C
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[Critical Reasoning]

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题目：

Fact:    Asthma, a bronchial condition, is much less common ailment than hay fever,
           an allergic inflammation of the nasal passages.      
Fact:    Over 95 percent of people who have asthma also suffer from hay fever.
 
If the information given as facts above is true, which of the following must also be true?

选项:

A、Hay fever is a prerequisite for the development of asthma.
B、Asthma is a prerequisite for the development of hay fever.
C、Those who have neither hay fever nor asthma comprise less than 5 percent of the total population.
D、The number of people who have both of these ailments is greater than the number of people who have only one of them.
E、The percentage of people suffering from hay fever who also have asthma is lower than 95 percent.

答案:

E
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[Sentence Correction]

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题目：

The contractor and the engineer agree on the cause of the bridge failure, but both blame the other.

选项:

A、both blame the other
B、each blames the other
C、each blame the other person
D、both are blaming the other
E、each blames one another

答案:

B
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[Sentence Correction]

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题目：

According to a recent survey of municipal services, the city's
streets could be cleaner, its fire code be better enforced, and
its crime rate reduced if the current administration improved its
management practices.

选项:

A、be better enforced, and its crime rate reduced
B、better enforced, and its crime rate reduced
C、could be better enforced, and kit could reduce its crime rate
D、better enforced, and its crime rate could reduce
E、could be better enforced, and its crime rate reduce

答案:

B
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[Sentence Correction]

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题目：

Recent breakthroughs in technology have made it possible that high-definition digital video cameras are able to capture material with a degree of fidelity that nearly compares to 35-millimeter film and to project it digitally in theaters with no resulting loss of image quality.

选项:

A、 it possible that high-definition digital video cameras are able to capture material with a degree of fidelity that nearly compares to
B、 it possible to have high-definition digital video cameras that can capture material at a degree of fidelity almost like that with
C、 it possible for high-definition digital video cameras to capture material with a degree of fidelity nearly comparable to that of
D、 possible high-definition digital video cameras that can capture material at a degree of fidelity almost like
E、 possible high-definition digital video cameras able to capture material with a degree of fidelity that nearly compares to that with

答案:

C
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448浏览

[Undefined]

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Art historian: Unlike many artistic traditions that sought to depict plants native to the local area in a seasonally appropriate way (for example, depicting scenes of spring with the plants in the appropriate stages of development for that season), seventeenth-century Dutch artists specializing in flower paintings almost exclusively chose to depict exotic species of flowers from outside the local area. Painting such species was worthwhile primarily because the art-buying public had developed a strong preference for images of the exotic. The great botanical centers of the time gave the artists direct access to such flowers, which the artists would freely combine in a single painting, regardless of whether the combined species occurred together in the wild, and depicted each in full bloom, regardless of whether those species bloomed at the same time in nature.

Statement: The art historian makes the point that the species of flowers these Dutch artists chose to paint were 1 largely because the species were 2 .

Select for 1 and for 2 the options that complete the statement so that it is most strongly supported by the information provided. Make only two selections, one in each column.
我选的CE，和EC有什么区别？怎么选出EC的？
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[Undefined]

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An unusually severe winter occurred in Europe after the continent was blanketed by a blue haze resulting from the eruption of the Laki Volcano in the European republic of Iceland in the summer of 1984.  Thus, it is evident that major eruptions cause the atmosphere to become cooler than it would be otherwise.
Which of the following statements, if true, most seriously weakens the argument above?
C选项为什么就不会有张冠李戴的问题呢，1984和1982的气候情况能一样吗，C里的火山就可以试用于原文的火山吗
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1688浏览

[Undefined]

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The rate of a certain chemical reaction is directly proportional to the square of the concentration of chemical A present and inversely proportional to the concentration of chemical B present. If the concentration of chemical B is increased by 100 percent, which of the following is closest to the percent change in the concentration of chemical A required to keep the reaction rate unchanged?
为什么这个题一定是相乘不能是相加呢？y=k1A方-k2B （k1,k2大于0 ），也满足题目说的与A方成正比与B成反比啊？但是这道题只有相乘的情况才能选出正确答案
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635浏览

[Undefined]

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Tiger beetles are such fast runners that they can capture virtually any nonflying insect.  However, when running toward an insect, the beetles intermittently stop, and then, a moment later, resume their attack.  Perhaps they cannot maintain their pace and must pause for a moment's rest; but an alternative hypothesis is that while running tiger beetles are unable to process the resulting rapidly changing visual information, and so quickly go blind and stop.
 
Which of the following, if discovered in experiments using artificially moved prey insects, would support one of the two hypotheses and undermine the other?
答案C是怎么支持一个猜想又削弱另一个猜想的？
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1465浏览

[GWD]

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The author of the passage implies that which of the following is a possible partial explanation for acquisition behavior during the 1970's and 1980's?
请解释这道题为什么不选C或E，除了正确选项B，我认为文中也正确地提到了这两个选项可以解释acquisition behavior during 1970s and 80s
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1045浏览

[OG]

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The primary purpose of the passage is to
为什么选E不选B
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692浏览

[Undefined]

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Club X has more than 10 but fewer than 40 members. Sometimes the members sit at tables with 3 members at one table and 4 members at each of the other tables, and sometimes they sit at tables with 3 members at one table and 5 members at each of the other tables. If they sit at tables with 6 members at each table except one and fewer than 6 members at that one table, how many members will be at the table that has fewer than 6 members?
提问小梅老师 这道题求讲一下 我没什么思路 带入数字得的是3
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704浏览

[Undefined]

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A photography dealer ordered 60 Model X cameras to be sold for $250 each, which represents a 20 percent markup over the dealer's initial cost for each camera. Of the cameras ordered, 6 were never sold and were returned to the manufacturer for a refund of 50 percent of the dealer's initial cost. What was the dealer's approximate profit or loss as a percent of the dealer's initial cost for the 60 cameras?
请问小梅老师 这道题讲讲一下 我算的是19% 原来成本是200每个 亏了6个 每个亏100. 最后得不出答案
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[Undefined]

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Analytical!
请问may老师，这题该用什么思路来做？
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[Undefined]

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Analytical!
请问张老师，这道题为什么D不对？我有我觉得second paragraph最后一句话特别指向D
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