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题目：

Which of the following most logically completes the passage?

Pecan growers get a high price for their crop when pecans are comparatively scarce, but the price drops sharply when pecans are abundant. Thus, in high-yield years, growers often hold back part of their crop in refrigerated warehouses for one or two years, hoping for higher prices in the future. This year's pecan crop was the smallest in five years. It is nonetheless quite possible that a portion of this year's crop will be held back, since ______________.

选项:

A、each of the last two years produced record-breaking pecan yields
B、the quality of this year's pecan crop is no worse than the quality of the pecan crops of the previous five years
C、pecan prices have not been subject to sharp fluctuations in recent years
D、for some pecan growers, this year's crop was no smaller than last year's
E、the practice of holding back part of one year's crop had not yet become widespread the last time the pecan crop was as small as it was this year

答案:

A
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题目：

Regardless of their form or function, all aerodynamically enhanced, curved objects made for throwing have been called boomerangs by non-Australians even since 1788, when Europeans saw Dharug-speaking men tossing "bumariny" in the area later known as Sydney.

选项:

A、Regardless of their form or function, all aerodynamically enhanced, curved objects made for throwing have been called boomerangs by non-Australians ever since 1788,
B、Regardless of their form or function, any aerodynamically enhanced, curved object made for throwing has been called a boomerang by non-Australians ever since 1788,
C、Ever since 1788, non-Australians have called all aerodynamically enhanced, curved objects made for throwing boomerangs, regardless of their form or function, from
D、Ever since 1788, any aerodynamically enhanced, curved object made for throwing has been called a boomerang by non-Australians, regardless of its form or function, from
E、Non-Australians have called all aerodynamically enhanced, curved objects made for throwing boomerangs ever since 1788, regardless of their form or function, from

答案:

A
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题目：

Crowding on Mooreville’s subway frequently leads to delays, because it is difficult for passengers to exit from the trains. Subway ridership is projected to increase by 20 percent over the next 10 years. The Mooreville Transit Authority plans to increase the number of daily train trips by only 5 percent over the same period. Officials predict that this increase is sufficient to ensure that the incidence of delays due to crowding does not increase.

Which of the following, if true, provides the strongest grounds for the officials’ prediction?

选项:

A、By changing maintenance schedules, the Transit Authority can achieve the 5 percent increase in train trips without purchasing any new subway cars.
B、The Transit Authority also plans a 5 percent increase in the number of bus trips on routes that connect to subways.
C、For most commuters who use the subway system, there is no practical alternative public transportation available.
D、Most of the projected increase in ridership is expected to occur in off-peak hours when trains are now sparsely used.
E、The 5 percent increase in the number of train trips can be achieved without an equal increase in Transit Authority operational costs.

答案:

D
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题目：

The results of the company's cost-cutting measures are evident in its profits, which increased 5 percent during the first 3 months of this year after it fell over the last two years.

选项:

A、which increased 5 percent during the first 3 months of this year after it fell
B、which had increased 5 percent during the first 3 months of this year after it had fallen
C、which have increased 5 percent during the first 3 months of this year after falling
D、with a 5 percent increase during the first 3 months of this year after falling
E、with a 5 percent increase during the first 3 months of this year after having fallen

答案:

C
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题目：

The Life and Casualty Company hopes that by increasing its environmental fund reserves to $1.2 billion, that it has set aside enough to pay for environmental claims and no longer has to use its profits and capital to pay those claims bit by bit, year by year.

选项:

A、that it has set aside enough to pay for environmental claims and no longer has
B、enough has been set aside with which environmental claims can be paid and it will have no longer
C、it has set aside enough for payment of environmental claims and thus no longer having
D、enough has been set aside to pay for environmental claims, thus no longer having
E、it has set aside enough to pay for environmental claims and will no longer have

答案:

E
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题目：

Vorland's government is planning a nationwide ban on smoking in restaurants.  The objection that the ban would reduce restaurants' revenues is ill founded.  Several towns in Vorland enacted restaurant smoking restrictions five years ago.  Since then, the amount the government collects in restaurant meal taxes in those towns has increased 34 percent, on average, but only 26 percent elsewhere in Vorland.  The amount collected in restaurant meal taxes closely reflects restaurants' revenues.
 
Which of the following, if true, most undermines the defense of the government's plan?

选项:

A、When the state first imposed a restaurant meal tax, opponents predicted that restaurants' revenues would decline as a result, a prediction that proved to be correct in the short term.
B、The tax on meals in restaurants is higher than the tax on many other goods and services.
C、Over the last five years, smoking has steadily declined throughout Vorland.
D、In many of the towns that restrict smoking in restaurants, restaurants can maintain separate dining areas where smoking is permitted.
E、Over the last five years, government revenues from sales taxes have grown no faster in the towns with restaurant smoking restrictions than in the towns that have no such restrictions.

答案:

D
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题目：

Mauritius was a British colony for almost 200 years, excepting for the domains of administration and teaching, the English language was never really spoken on the island.

选项:

A、excepting for
B、except in
C、but except in
D、but excepting for
E、with the exception of

答案:

C
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题目：

The three women, liberal activists who strongly support legislation in favor of civil rights and environmental protection, have consistently received labor's unqualifying support.

选项:

A、have consistently received labor's unqualifying support
B、are consistently receiving the unqualifying support of labor
C、have consistently received the unqualified support of labor
D、receive consistent and unqualified support by labor
E、are receiving consistent and unqualified support by labor

答案:

C
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题目：

Humans get Lyme disease from infected ticks. Ticks get infected by feeding on animals with Lyme disease, but the ease of transmission from host animal to tick varies. With most species of host animal, transmission of Lyme disease to ticks is extremely rare, but white-footed mice are an exception, readily passing Lyme disease to ticks. And white-footed mouse populations greatly expand, becoming the main food source for ticks, in areas where biodiversity is in decline.

The information in the passage most strongly supports which of the following?

选项:

A、In areas where many humans are infected with Lyme disease, the proportion of ticks infected with Lyme disease is especially high.
B、Very few animals that live in areas where there are no white-footed mice are infected with Lyme disease.
C、Humans are less at risk of contracting Lyme disease in areas where biodiversity is high.
D、Ticks feed on white-footed mice only when other host species are not available to them.
E、The greater the biodiversity of an area, the more likely any given host animal in that area is to pass Lyme disease to ticks.

答案:

C
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Economist: The most economically efficient way to reduce emissions of air pollutants is to tax them in proportion to the damage they are likely to cause. But in Country Y, many serious pollutants are untaxed and unregulated, and policy makers strongly oppose new taxes. Therefore, the best way to achieve a reduction in air pollutant emissions in Country Y would be to institute fixed upper limits on them.

Which of the following is an assumption of the economist’s argument?

选项:

A、Policy makers in Country Y oppose all new taxes equally strongly, regardless of any benefits they may provide.
B、Country Y’s air pollutant emissions would not fall significantly if they were taxed in proportion to the damage they are likely to cause.
C、Policy makers in Country Y strongly favor reductions in air pollutant emissions.
D、Country Y’s policy makers believe that air pollutant emissions should be reduced with maximum economic efficiency.
E、Policy makers in Country Y do not oppose setting fixed upper limits on air pollutant emissions as strongly as they oppose new taxes.

答案:

E
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427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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1472浏览

[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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1651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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627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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[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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1021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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680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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698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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