问答

5答疑

[Reading Comprehension]

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文章：

Line         Historians remain divided over the role of
  banks in facilitating economic growth in the
  United States in the late eighteenth and early
  nineteenth centuries. Some scholars contend
(5) that banks played a minor role in the nation’s
  growing economy. Financial institutions, they
  argue, appeared only after the economy had
  begun to develop, and once organized, followed
  conservative lending practices, providing aid to
(10) established commercial enterprises but
  shunning those, such as manufacturing and
  transportation projects, that were more
  uncertain and capital-intensive (i.e., requiring
  greater expenditures in the form of capital than in
(15) labor).
       A growing number of historians argue, in
  contrast, that banks were crucial in transforming
  the early national economy. When state
  legislatures began granting more bank charters
(20) in the 1790s and early 1800s, the supply of
  credit rose accordingly. Unlike the earliest banks,
  which had primarily provided short-term loans to
  well-connected merchants, the banks of the early
  nineteenth century issued credit widely. As Paul
(25) Gilje asserts, the expansion and democratization
  of credit in the early nineteenth century became
  the driving force of the American economy, as
  banks began furnishing large amounts of capital
  to transportation and industrial enterprises. The
(30) exception, such historians argue, was in the
  South; here, the overwhelmingly agrarian nature
  of the economy generated outright opposition
  to banks, which were seen as monopolistic
  institutions controlled by an elite group of
(35) planters.


题目：

Which of the following statements best describes the function of the last sentence of the passage?

选项:

A、It provides evidence tending to undermine the viewpoint of the scholars mentioned in line 5.
B、It resolves a conflict over the role of banks summarized in the first paragraph.
C、It clarifies some of the reasons state legislatures began granting more bank charters.
D、It qualifies a claim made earlier in the passage about the impact of banks on the American economy in the early nineteenth century.
E、It supports a claim made earlier in the passage about how the expansion of credit affected the economy.

答案:

D
5答疑

[Data Sufficiency]

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题目：

A rectangle P Q R S has a point labeled T on its base P Q. Two lines are drawn from a point T to the top vertices Q and R.

In rectangular region PQRS above, T is a point on side PS. If PS = 4, what is the area of region PQRS ?

  1. ∆QTR is equilateral.
  2. Segments PT and TS have equal length.

选项:

A、Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B、Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C、BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D、EACH statement ALONE is sufficient.
E、Statements (1) and (2) TOGETHER are NOT sufficient.

答案:

A
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[Critical Reasoning]

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题目：

A major impediment to wide acceptance of electric vehicles even on the part of people who use their cars almost exclusively for commuting is the inability to use electric vehicles for occasional extended trips. In an attempt to make purchasing electric vehicles more attractive to commuters, one electric vehicle producer is planning to offer customers three days free rental of a conventional car for every 1,000 miles that they drive their electric vehicle.
Which of the following, if true, most threatens the plan's prospects for success?

选项:

A、Many electric vehicles that are used for commercial purposes are not needed for extended trips.
B、Because a majority of commuters drive at least 100 miles a week, the cost to the producer of making good the offer would add considerably to the already high price of electric vehicles. 
C、The relatively long time it takes to recharge the battery of an electric vehicle can easily be fitted into the regular patterns of car use characteristic of commuters. 
D、Although electric vehicles are essentially emission-free in actual use, generating the electricity necessary for charging an electric vehicle's battery can burden the environment. 
E、Some family vehicles are used primarily not for commuting but for making short local trips, such as to do err ands.

答案:

B
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[Sentence Correction]

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题目：

Covering 71 percent of Earth’s surface, the oceans play an essential role in maintaining the conditions for human existence on land, moderating temperature by the absorption of heat and carbon dioxide, and giving pure water back to the atmosphere through evaporation.

选项:

A、Covering 71 percent of Earth’s surface, the oceans play an essential role in maintaining the conditions for human existence on land, moderating
B、Covering 71 percent of Earth’s surface and playing an essential role in maintaining the conditions for human existence on land, the oceans moderate
C、The oceans cover 71 percent of Earth’s surface and play an essential role in maintaining conditions for human existence on land, and by moderating
D、The oceans cover 71 percent of Earth’s surface, play an essential role in maintaining the conditions for human existence on land, and moderate
E、The oceans cover 71 percent of Earth’s surface, playing an essential role in maintaining the conditions for human existence on land, and they moderate

答案:

A
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[Sentence Correction]

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题目：

Archaeologists in Egypt have excavated a 5,000-year-old wooden hull that is the earliest surviving example of a "built" boat--in other words, a boat constructed out of planks fitted together--and that thus represents a major advance, in terms of boat-building technology, over the dugout logs and reed vessels of more ancient vintage.
 

选项:

A、 together--and that thus represents
B、 together--and this has represented
C、 together, and it represents
D、 together that was representing
E、 together to represent

答案:

A
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[Critical Reasoning]

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题目：

In Brindon County, virtually all of the fasteners—such as nuts, bolts, and screws—used by workshops and manufacturing firms have for several years been supplied by the Brindon Bolt Barn, a specialist wholesaler.  In recent months many of Brindon County's workshops and manufacturing firms have closed down, and no new ones have opened.  Therefore, the Brindon Bolt Barn will undoubtedly show a sharp decline in sales volume and revenue for this year as compared to last year.
 
The argument depends on assuming which of the following?
愠

选项:

A、Last year the Brindon Bolt Barn's sales volume and revenue were significantly higher than they had been the previous year.
B、The workshops and manufacturing firms that have remained open have a smaller volume of work to do this year than they did last year.
C、Soon the Brindon Bolt Barn will no longer be the only significant supplier of fasteners to Brindon County's workshops.
D、The Brindon Bolt Barn's operating expenses have not increased this year.
E、The Brindon Bolt Barn is not a company that gets the great majority of its business from customers outside Brindon County.

答案:

E
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[Data Sufficiency]

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题目：

The annual rent collected by a corporation from a certain building was x percent more in 1998 than in 1997 and y percent less in 1999 than in 1998.  Was the annual rent collected by the corporation from the building more in 1999 than in 1997?

选项:

答案:

B
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[Sentence Correction]

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题目：

The number of plant and animal species that humans are known to have forced to extinction in the last half millennium is over 800.

选项:

A、humans are known to have forced to extinction
B、humans are known as having forced to become extinct
C、humans are known for forcing to become extinct
D、are known that humans forced to become extinct
E、are known as having been forced to extinction by humans

答案:

A
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[Sentence Correction]

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题目：

Regulators are likely to end what are, in effect, long-standing exemptions permitting pilots of small turboprop aircraft at small carriers to fly as much as 20 percent more hours per month than pilots at larger airlines fly, with the consequence that some carriers could be forced to hire additional pilots.

选项:

A、as much as 20 percent more hours per month than pilots at larger airlines fly, with the consequence that
B、as many as 20 percent more hours per month as pilots at larger airlines, and
C、more hours per month, as much as 20 percent, than pilots at larger airlines; consequently
D、as much as 20 percent more hours per month as larger airlines' pilots, so
E、as many as 20 percent more hours per month than pilots at larger airlines do, and consequently

答案:

E
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[Sentence Correction]

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题目：

Finally reaching a decision on an issue that has long been politically charged
in the Pacific Northwest, politicians decided to postpone by at least five years
an ambitious plan to protect wild salmon and other endangered fish, instead
of which they proposed a series of smaller steps, by which they intend to
protect the fish.

选项:

A、politicians decided to postpone by at least five years an ambitious plan to protect wild salmon and other endangered fish, instead of which they proposed a series of smaller steps, by which they intend
B、politicians decided to postpone by at least five years an ambitious plan to protect wild salmon and other endangered fish, proposing instead a series of smaller steps intended.
C、politicians decided to postpone by at least five years an ambitious plan for protecting wild salmon and other endangered fish, and instead they proposed a series of smaller steps, intending.
D、an ambitious plan to protect wild salmon and other endangered fish was postponed by politicians, who instead proposed a series of smaller steps, intending.
E、an ambitious plan to protect wild salmon and other endangered fish has been postponed by politicians, proposing instead a series of smaller steps intended.

答案:

B
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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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1502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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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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1464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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[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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167300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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174414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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