问答

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[Sentence Correction]

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题目：

Of all the vast tides of migration that have swept through history, maybe none is more concentrated as the wave that brought 12 million immigrants onto American shores in little more than three decades.

选项:

A、maybe none is more concentrated as
B、it may be that none is more concentrated as
C、perhaps it is none that is more concentrated than
D、maybe it is none that was more concentrated than
E、perhaps none was more concentrated than

答案:

E
1答疑

[Reading Comprehension]

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文章：

Line The fact that superior service can generate a
competitive advantage for a company does not
mean that every attempt at improving service will
create such an advantage. Investments in service,
(5) like those in production and distribution, must be
balanced against other types of investments on the
basis of direct, tangible benefits such as cost
reduction and increased revenues. If a company is
already effectively on a par with its competitors
(10) because it provides service that avoids a damaging
reputation and keeps customers from leaving at an
unacceptable rate, then investment in higher
service levels may be wasted, since service is a
deciding factor for customers only in extreme
(15) situations.
This truth was not apparent to managers of one
regional bank, which failed to improve its
competitive position despite its investment in
reducing the time a customer had to wait for a
(20) teller. The bank managers did not recognize the
level of customer inertia in the consumer banking
industry that arises from the inconvenience of
switching banks. Nor did they analyze their service
improvement to determine whether it would attract
(25) new customers by producing a new standard of
service that would excite customers or by proving
difficult for competitors to copy. The only merit of
the improvement was that it could easily be
described to customers.

题目：

The discussion of the regional bank in the second paragraph serves which of the following functions within the passage as a whole?

选项:

答案:

E
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题目：

Schistosomiasis, a disease caused by a parasitic worm, is prevalent in hot, humid climates, and it has become more widespread as irrigation projects have enlarged the habitat of the freshwater snails that are the parasite's hosts for part of its life cycle.

选项:

答案:

A
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[Problem Solving]

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题目：

If 2 is the greatest number that will divide evenly into both x and y, what is the greatest number that will divide evenly into both 5x and 5y? 

选项:

A、A2
B、B4
C、C6
D、D8
E、E10

答案:

E
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[Critical Reasoning]

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题目：

Absolute, or perfect, pitch—the ability to identify the pitch of an isolated musical note—is rare in the general population, but relatively common among trained musicians.  A survey of fifteen-year-old music students showed that absolute pitch was more common among those who had been studying music since a very early age than among those who started studying a few years later.  Thus very early musical training aids in the development of absolute pitch.
 
Which of the following, if true, most seriously weakens the argument?
椠

选项:

A、Young children with absolute pitch might not realize that they have it until they become adolescents.
B、Possession of absolute pitch can hamper a person's enjoyment of musical performances.
C、Most musicians who have absolute pitch started their training before age seven.
D、It is never the goal of early musical training to develop absolute pitch.

答案:

A
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[Reading Comprehension]

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文章：

The storms most studied by climatologists have been those that are most easily understood by taking atmospheric measurements.  Hurricanes and tornadoes, for example, are spatially confined, the forces that drive them are highly concentrated, and they have distinctive forms and readily quantifiable characteristics.  Consequently, data about them are abundant, and their behavior is relatively well understood, although still difficult to predict.
 
Hurricanes and tornadoes are also studied because they are highly destructive storms, and knowledge about their behavior can help minimize injury to people and property.  But other equally destructive storms have not been so thoroughly researched, perhaps because they are more difficult to study.  A primary example is the northeaster, a type of coastal storm that causes significant damage along the eastern coast of North America.  Northeasters, whose diffuse nature makes them difficult to categorize, are relatively weak low-pressure systems with winds that rarely acquire the strength of even the smallest hurricane.  Although northeasters are perceived to be less destructive than other storms, the high waves associated with strong northeasters can cause damage comparable to that of a hurricane, because they can affect stretches of coast more than 1,500 kilometers long, whereas hurricanes typically threaten a relatively small ribbon of coastline--roughly 100 to 150 kilometers.

题目：

According to the passage, which of the following is true of northeasters?

选项:

A、They have only recently been identified as a distinct storm type.
B、They are more destructive than tornadoes.
C、They are low-pressure systems.
D、They affect a relatively small segment of the eastern coast of North America.
E、Their winds are typically as strong as those of small hurricanes.

答案:

C
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题目：

The United States petroleum industry’s cost to meet environmental regulations is projected at ten percent of the price per barrel of refined petroleum by the end of the decade.

选项:

A、The United States petroleum industry’s cost to meet environmental regulations is projected at ten percent of the price per barrel of refined petroleum by the end of the decade.
B、The United States petroleum industry’s cost by the end of the decade to meet environmental regulations is estimated at ten percent of the price per barrel of refined petroleum.
C、By the end of the decade, the United States petroleum industry’s cost of meeting environmental regulations is projected at ten percent of the price per barrel of refined petroleum.
D、To meet environmental regulations, the cost to the United States petroleum industry is estimated at ten percent of the price per barrel of refined petroleum by the end of the decade.
E、It is estimated that by the end of the decade the cost to the United States petroleum industry of meeting environmental regulations will be ten percent of the price per barrel of refined petroleum.

答案:

E
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[Reading Comprehension]

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文章：

题目：

Which of the following, if true, would most clearly undermine Gallagher’s explanation of the link between Royalism and feminism?

选项:

A、Because of their privileged backgrounds, Royalist women were generally better educated than were their Parliamentarian counterparts.
B、Filmer himself had read some of Cavendish’s early writings and was highly critical of her ideas.
C、Cavendish’s views were highly individual and were not shared by the other Royalist women who wrote early feminist works.
D、The Royalist and Parliamentarian ideologies were largely in agreement on issues of family organization and women’s political rights.
E、The Royalist side included a sizable minority faction that was opposed to the more radical tendencies of Filmerian patriarchalism.

答案:

C
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题目：

To protect English manufacturers of woolen goods both against American and Irish competition, England passed the Woolens Act of 1698, which prohibited the export of woolen cloth beyond a colony's borders.

选项:

A、 To protect English manufacturers of woolen goods both against American and Irish competition, England passed the Woolens Act of 1698
B、 In order to protect English manufacturers of woolen goods against both American and Irish competition, England passed the Woolens Act of 1698
C、 In order to protect English manufacturers of woolen goods against American, as well as against Irish, competition, the Woolens Act of 1698 was passed by England
D、 For protecting English manufacturers of woolen goods against American, as well as Irish, competition, England passed the Woolens Act of 1698
E、 For the protection of English manufacturers of woolen goods against both American and Irish competition, the Woolens Act of 1698, passed by England

答案:

B
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[Reading Comprehension]

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文章：

Line When asteroids collide, some collisions cause
an asteroid to spin faster; others slow it down. If
asteroids are all monoliths—single rocks—undergoing
random collisions, a graph of their rotation rates
(5) should show a bell-shaped distribution with statistical
“tails” of very fast and very slow rotators. If asteroids
are rubble piles, however, the tail representing the
very fast rotators would be missing, because any
loose aggregate spinning faster than once every few
(10) hours (depending on the asteroid’s bulk density)
would fly apart. Researchers have discovered that
all but five observed asteroids obey a strict limit on
rate of rotation. The exceptions are all smaller than
200 meters in diameter, with an abrupt cutoff for
(15) asteroids larger than that.
The evident conclusion—that asteroids larger than
200 meters across are multicomponent structures or
rubble piles—agrees with recent computer modeling
of collisions, which also finds a transition at that
(20) diameter. A collision can blast a large asteroid to bits,
but after the collision those bits will usually move
slower than their mutual escape velocity. Over several
hours, gravity will reassemble all but the fastest
pieces into a rubble pile. Because collisions among
(25) asteroids are relatively frequent, most large bodies
have already suffered this fate. Conversely, most
small asteroids should be monolithic, because impact
fragments easily escape their feeble gravity.

题目：

The discovery of which of the following would call into question the conclusion mentioned in line 16?

选项:

A、An asteroid 100 meters in diameter rotating at a rate of once per week
B、An asteroid 150 meters in diameter rotating at a rate of 20 times per hour
C、An asteroid 250 meters in diameter rotating at a rate of once per week
D、An asteroid 500 meters in diameter rotating at a rate of once per hour
E、An asteroid 1,000 meters in diameter rotating at a rate of once every 24 hours

答案:

D
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[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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3609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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[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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[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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[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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[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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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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