问答

3答疑

[Sentence Correction]

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题目：

In Holland, a larger percentage of the gross national product is spent on defense of their coasts from rising seas than is spent on military defense in the United States.

选项:

A、In Holland, a larger percentage of the gross national product is spent on defense of their coasts from rising seas than is spent on military defense in the United States. 
B、In Holland they spend a larger percentage of their gross national product on defending their coasts from rising seas than the United States does on military defense. 
C、A larger percentage of Holland's gross national product is spent on defending their coasts from rising seas than the United States spends on military defense. 
D、Holland spends a larger percentage of its gross national product defending its coasts from rising seas than the military defense spending of the United States. 
E、Holland spends a larger percentage of its gross national product on defending its coasts from rising seas than the United States does on military defense.

答案:

E
3答疑

[Critical Reasoning]

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题目：

The kinds of hand and wrist injuries that result from extended use of a computer while maintaining an incorrect posture are common among schoolchildren in Harnville. Computers are important to the school curriculum there, so instead of reducing the amount their students use computers, teachers plan to bring about a sharp reduction in the number of these injuries by carefully monitoring their students' posture when using computers in the classroom.

Which of the following would it be most useful to know in order to assess the likelihood that the teachers' plan will be successful?

选项:

A、Whether extended use of a computer while maintaining incorrect posture can cause injuries other than hand and wrist injuries
B、Whether hand and wrist injuries not caused by computer use are common among schoolchildren in Harnville
C、What proportion of schoolchildren in Harnville with hand and wrist injuries use computers extensively outside the classroom
D、Whether changes in the curriculum could reduce the schools' dependence on computers
E、What proportion of schoolchildren in Harnville already use correct posture while using a computer

答案:

C
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[Critical Reasoning]

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题目：

The heavy traffic in Masana is a growing drain on the city's economy—the clogging of the streets of the central business district alone cost the economy more than $1.2 billion over the past year. In order to address this problem, officials plan to introduce congestion pricing, by which drivers would pay to enter the city's most heavily trafficked areas during the busiest times of the day.

Which of the following, if true, would most strongly indicate that the plan will be a success?

选项:

A、Approximately one-fifth of the vehicles in the central business district are in transit from one side of the city to the other.
B、Planners expect that, without congestion pricing, traffic in Masana is likely to grow by 6 percent in the next five years.
C、In other urban areas, congestion pricing has strongly encouraged carpooling (sharing of rides by private commuters).
D、Several studies have shown that a reduction in traffic of 15 percent in Masana could result in 5,500 or more new jobs.
E、Over 30 percent of the vehicles in the city's center are occupied by more than one person.

答案:

C
3答疑

[Reading Comprehension]

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文章：

    Extensive research has shown that the effects of short-term price promotions on sales are themselves short-term. Companies' hopes that promotions might have a positive aftereffect have not been borne out for reasons that researchers have been able to identify. A price promotion entices only a brand's long-term or "loyal" customers; people seldom buy an unfamiliar brand merely because the price is reduced. They simply avoid paying more than they have to when one of their customary brands is temporarily available at a reduced price. A price promotion does not increase the number of long-term customers of a brand, as it attracts virtually no new customers in the first place. Nor do price promotions have lingering aftereffects for a brand, even negative ones such as damage to a brand's reputation or erosion of customer loyalty, as is often feared.

    So why do companies spend so much on price promotions? Clearly price promotions are generally run at a loss, otherwise there would be more of them. And the bigger the increase in sales at promotion prices, the bigger the loss. While short-term price promotions can have legitimate uses, such as reducing excess inventory, it is the recognizable increase in sales that is their main attraction to management, which is therefore reluctant to abandon this strategy despite its effect on the bottom line.

题目：

It can be inferred from the passage that if a company ceased to run short-term price promotions for a particular product, an effect of this change would be to

选项:

A、reduce excess inventory of the product
B、lose some of the product's long-term customers
C、reduce the product's overall sales
D、inhibit growth in the number of the product's customers
E、threaten the product's profitability

答案:

C
3答疑

[Data Sufficiency]

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题目：

If  is an integer, what is the value of ?
(1)    11＜x＜17
(2)    2＜＜5

选项:

答案:

A
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[Reading Comprehension]

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文章：

Conventional wisdom has it that large deficits in the United States budget cause interest rates to rise.  Two main arguments are given for this claim.  According to the first, as the deficit increases, the government will borrow more to make up for the ensuing shortage of funds.  Consequently, it is argued, if both the total supply of credit (money available for borrowing) and the amount of credit sought by nongovernment borrowers remain relatively stable, as is often supposed, then the price of credit (the interest rate) will increase.  That this is so is suggested by the basic economic principle that if supplies of a commodity (here, credit) remain fixed and demand for that commodity increases, its price will also increase.  The second argument supposes that the government will tend to finance its deficits by increasing the money supply with insufficient regard for whether there is enough room for economic growth to enable such an increase to occur without causing inflation.  It is then argued that financiers will expect the deficit to cause inflation and will raise interest rates, anticipating that because of inflation the money they lend will be worth less when paid back.
 
Unfortunately for the first argument, it is unreasonable to assume that nongovernment borrowing and the supply of credit will remain relatively stable.  Nongovernment borrowing sometimes decreases.  When it does, increased government borrowing will not necessarily push up the total demand for credit.  Alternatively, when credit availability increases, for example through greater foreign lending to the United States, then interest rates need not rise, even if both private and government borrowing increase.
 
The second argument is also problematic.  Financing the deficit by increasing the money supply should cause inflation only when there is not enough room for economic growth.  Currently, there is no reason to expect deficits to cause inflation.  However, since many financiers believe that deficits ordinarily create inflation, then admittedly they will be inclined to raise interest rates to offset mistakenly anticipated inflation.  This effect, however, is due to ignorance, not to the deficit itself, and could be lessened by educating financiers on this issue.

题目：

The author uses the term "admittedly" (see highlighted text) in order to indicate that

选项:

A、the second argument has some truth to it, though not for the reasons usually supposed
B、the author has not been successful in attempting to point out inadequacies in the two arguments
C、the thesis that large deficits directly cause interest rates to rise has strong support after all
D、financiers should admit that they were wrong in thinking that large deficits will cause higher inflation rates
E、financiers generally do not think that the author's criticisms of the second argument are worthy of consideration

答案:

A
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[Critical Reasoning]

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题目：

Twenty years ago, Balzania put in place regulations requiring operators of surface mines to pay for the reclamation of mined-out land.  Since then, reclamation technology has not improved.  Yet, the average reclamation cost for a surface coal mine being reclaimed today is only four dollars per ton of coal that the mine produced, less than half what it cost to reclaim surface mines in the years immediately after the regulations took effect.
 
Which of the following, if true, most helps to account for the drop in reclamation costs described?

选项:

A、Even after Balzania began requiring surface mine operators to pay reclamation costs, coal mines in Balzania continued to be less expensive to operate than coal mines in almost any other country.
B、In the twenty years since the regulations took effect, the use of coal as a fuel has declined from the level it was at in the previous twenty years.
C、Mine operators have generally ceased surface mining in the mountainous areas of Balzania because reclamation costs per ton of coal produced are particularly high for mines in such areas.
D、Even after Balzania began requiring surface mine operators to pay reclamation costs, surface mines continued to produce coal at a lower total cost than underground mines.
E、As compared to twenty years ago, a greater percentage of the coal mined in Balzania today comes from surface mines.

答案:

C
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[Sentence Correction]

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题目：

Most European countries offer a variety of programs for assisting
working parents, which include paid maternity and paternity leaves,
financial allowances for families with children, and they subsidize
public nurseries and kindergartens.

选项:

A、for assisting working parents, which include paid maternity and paternity leaves, financial allowances for families with children, and they subsidize
B、for the assistance of working parents, to include paid maternity and paternity leaves, also financial allowances for families with children, and subsidizing
C、in order to assist working parents, to include paid maternity and paternity leaves, financial allowances for families with children, and to subsidize
D、to assist working parents, which includes paid maternity and  paternity leaves, financial allowances for families with children, and they also subsidize
E、to assist working parents, including paid maternity and paternity  leaves, financial allowances for families with children, and subsidized

答案:

E
3答疑

[Reading Comprehension]

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文章：

A recent study has provided clues to predator-prey dynamics in the late Pleistocene era.  Researchers compared the number of tooth fractures in present-day carnivores with tooth fractures in carnivores that lived 36,000 to 10,000 years ago and that were preserved in the Rancho La Brea tar pits in Los Angeles.  The breakage frequencies in the extinct species were strikingly higher than those in the present-day species.
 
In considering possible explanations for this finding, the researchers dismissed demographic bias because older individuals were not overrepresented in the fossil samples.  They rejected preservational bias because a total absence of breakage in two extinct species demonstrated that the fractures were not the result of abrasion within the pits.  They ruled out local bias because breakage data obtained from other Pleistocene sites were similar to the La Brea data.  The explanation they consider most plausible is behavioral differences between extinct and present-day carnivores--in particular, more contact between the teeth of predators and the bones of prey due to more thorough consumption of carcasses by the extinct species.  Such thorough carcass consumption implies to the researchers either that prey availability was low, at least seasonally, or that there was intense competition over kills and a high rate of carcass theft due to relatively high predator densities.

题目：

The passage suggests that tooth fractures in Pleistocene carnivores probably tended to occur less frequently

选项:

A、during periods in which more prey were available
B、at sites distant from the La Brea area
C、in older individual carnivores
D、in species that were not preserved as fossils
E、in species that regularly stole carcasses from other species

答案:

A
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[Problem Solving]

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题目：

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?

选项:

A、1
B、2
C、3
D、4
E、5

答案:

E
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577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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1745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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1939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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724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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1645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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1148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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771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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790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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181555浏览

[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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188669浏览

[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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