问答

1答疑

[Problem Solving]

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题目：

For every positive even integer n, the function h(n) is defined to be the product of all the even integers from 2 to n, inclusive. If p is the smallest prime factor of h(100) + 1, then p is

选项:

A、between 2 and 10
B、between 10 and 20
C、between 20 and 30
D、between 30 and 40
E、greater than 40

答案:

E
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[Problem Solving]

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题目：

A rectangular picture is surrounded by a boarder, as shown in the figure above.  Without the boarder the length of the picture is twice its width.  If the area of the boarder is 196 square inches, what is the length, in inches, of the picture, excluding the boarder?

选项:

A、10
B、15
C、30
D、40
E、60

答案:

C
1答疑

[Data Sufficiency]

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题目：

If x is a positive integer, how many positive integers less than x are divisors of x ?
  1. x2 is divisible by exactly 4 positive integers less than x2.
  2. 2x is divisible by exactly 3 positive integers less than 2x.

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
1答疑

[Reading Comprehension]

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文章：

Line    According to economic signaling theory,
  consumers may perceive the frequency with
  which an unfamiliar brand is advertised as a cue
  that the brand is of high quality. The notion that
(5) highly advertised brands are associated with
  high-quality products does have some empirical
  support. Marquardt and McGann found that
  heavily advertised products did indeed rank high
  on certain measures of product quality. Because
(10) large advertising expenditures represent
  a significant investment on the part of a
  manufacturer, only companies that expect to
  recoup these costs in the long run, through
  consumers’ repeat purchases of the product,
(15) can afford to spend such amounts.
       However, two studies by Kirmani have found
  that although consumers initially perceive expensive
  advertising as a signal of high brand quality,
  at some level of spending the manufacturer’s
(20) advertising effort may be perceived as unreasonably
  high, implying low manufacturer confidence in
  product quality. If consumers perceive excessive
  advertising effort as a sign of a manufacturer’s
  desperation, the result may be less favorable
(25) brand perceptions. In addition, a third study by
  Kirmani, of print advertisements, found that the
  use of color affected consumer perception of
  brand quality. Because consumers recognize that
  color advertisements are more expensive than
(30) black and white, the point at which repetition of an
  advertisement is perceived as excessive comes
  sooner for a color advertisement than for a blackand-
  white advertisement.


题目：

Kirmani’s third study, as described in the passage, suggests which of the following conclusions about a black-and-white advertisement?

选项:

A、It can be repeated more frequently than a comparable color advertisement could before consumers begin to suspect low manufacturer confidence in the quality of the advertised product.
B、It will have the greatest impact on consumers’ perceptions of the quality of the advertised product if it appears during periods when a color version of the same advertisement is also being used.
C、It will attract more attention from readers of the print publication in which it appears if it is used only a few times.
D、It may be perceived by some consumers as more expensive than a comparable color advertisement.
E、It is likely to be perceived by consumers as a sign of higher manufacturer confidence in the quality of the advertised product than a comparable color advertisement would be.

答案:

A
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[Sentence Correction]

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题目：

When Medicare was enacted in 1965, it was aimed at the prevention of a catastrophic illness from financially destroying elderly patients.

选项:

A、at the prevention of a catastrophic illness from financially destroying elderly patients
B、at being a preventive against catastrophic illness financially destroying elderly patients
C、at preventing a catastrophic illness from financially destroying the elderly patient
D、to prevent a catastrophic illness financially destroying an elderly patient
E、to prevent elderly patients being financially destroyed by a catastrophic illness

答案:

C
1答疑

[Reading Comprehension]

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文章：

Line Critics maintain that the fiction of Herman Melville
(1819–1891) has limitations, such as its lack
of inventive plots after Moby-Dick (1851) and its
occasionally inscrutable style. A more serious, yet
(5) problematic, charge is that Melville is a deficient
writer because he is not a practitioner of the “art of
fiction,” as critics have conceived of this art since the
late nineteenth-century essays and novels of Henry
James. Indeed, most twentieth-century commentators
(10) regard Melville not as a novelist but as a writer of
romance, since they believe that Melville’s fiction
lacks the continuity that James viewed as essential
to a novel: the continuity between what characters
feel or think and what they do, and the continuity
(15) between characters’ fates and their pasts or original
social classes. Critics argue that only Pierre (1852),
because of its subject and its characters, is close to
being a novel in the Jamesian sense.
However, although Melville is not a Jamesian
(20) novelist, he is not therefore a deficient writer. A more
reasonable position is that Melville is a different
kind of writer, who held, and should be judged
by, presuppositions about fiction that are quite
different from James’s. It is true that Melville wrote
(25) “romances”; however, these are not the escapist
fictions this word often implies, but fictions that
range freely among very unusual or intense human
experiences. Melville portrayed such experiences
because he believed these best enabled him to
(30) explore moral questions, an exploration he assumed
was the ultimate purpose of fiction. He was content
to sacrifice continuity or even credibility as long
as he could establish a significant moral situation.
Thus Melville’s romances do not give the reader
(35) a full understanding of the complete feelings and
thoughts that motivate actions and events that shape
fate. Rather, the romances leave unexplained the
sequence of events and either simplify or obscure
motives. Again, such simplifications and obscurities
(40) exist in order to give prominence to the depiction of
sharply delineated moral values, values derived from
a character’s purely personal sense of honor, rather
than, as in a Jamesian novel, from the conventions of
society.

题目：

Which of the following statements best describes the author’s method of argumentation in lines 24–31?

选项:

A、The author describes an important standard of evaluation used by critics of Melville and then attacks that standard.
B、The author admits a contention put forward by critics of Melville but then makes a countercharge against those critics.
C、The author describes a charge advanced by critics of Melville and then points out a logical flaw in this charge.
D、The author provides evidence that seems to support a position held by critics of Melville but then demonstrates that the evidence actually supports a diametrically opposed position.
E、The author concedes an assertion made by critics of Melville but then mitigates the weight of the assertion by means of an explanation.

答案:

E
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[Sentence Correction]

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题目：

For the last five years the Dutch economy has grown faster than Britain, France, or Germany, with the unemployment rate having remained well below that of the other three countries.

选项:

A、Britain, France, or Germany, with the unemployment rate having remained
B、have those of Britain, France, or Germany, and the unemployment rate remaining
C、have Britain, France, and Germany, and the unemployment rate has remained
D、the economy of Britain, France, and Germany, with the unemployment rate that has remained
E、the economies of Britain, France, and Germany, and the unemployment rate has remained

答案:

E
1答疑

[Critical Reasoning]

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题目：

A product that represents a clear technological advance over competing products can generally command a high price. Because technological advances tend to be quickly surpassed and companies want to make large profits while they still can, many companies charge the maximum possible price for such a product. But large profits on the new product will give competitors a strong incentive to quickly match the new product's capabilities. Consequently, the strategy to maximize overall profit from a new product is to charge less than the greatest possible price.
In the argument above, the two portions in boldface play which of the following roles?

选项:

A、The first is a consideration that has been raised to argue that a certain strategy is counterproductive; the second presents that strategy.
B、The first is a consideration raised to support the strategy that the argument recommends; the second presents that strategy.
C、The first is a consideration raised to explain the appeal of a certain strategy; the second presents that strategy.
D、The first is an assumption, rejected by the argument, that has been used to justify a course of action; the second presents that course of action.
E、The first is a consideration that has been used to justify pursuing a goal that the argument rejects; the second presents a course of action that has been adopted in pursuit of that goal.

答案:

C
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[Data Sufficiency]

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题目：

If x is a positive integer, what is the least common multiple of x, 6, and 9?
(1) The least common multiple of x and 6 is 30.
(2) The least common multiple of x and 9 is 45.

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:

D
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[Critical Reasoning]

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题目：

Male bowerbirds construct elaborately decorated nests, or bowers.  Basing their judgment on the fact that different local populations of bowerbirds of the same species build bowers that exhibit different building and decorative styles, researchers have concluded that the bowerbirds' building styles are a culturally acquired, rather than a genetically transmitted, trait.
 
Which of the following, if true, would most strengthen the conclusion drawn by the researchers?

选项:

A、There are more common characteristics than there are differences among the bowerbuilding styles of the local bowerbird population that has been studied most extensively.
B、Young male bowerbirds are inept at bowerbuilding and apparently spend years watching their elders before becoming accomplished in the local bower style.
C、The bowers of one species of bowerbird lack the towers and ornamentation characteristic of the bowers of most other species of bowerbird.
D、Bowerbirds are found only in New Guinea and Australia, where local populations of the birds apparently seldom have contact with one another.
E、It is well known that the song dialects of some songbirds are learned rather than transmitted genetically.

答案:

B
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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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1302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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[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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[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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