问答

2答疑

[Critical Reasoning]

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题目：

Political theorist: Even with the best spies, area experts, and satellite surveillance, foreign policy assessments can still lack important information. In such circumstances intuitive judgment is vital. A national leader with such judgment can make good decisions about foreign policy even when current information is incomplete, since __________.

Which of the following, if true, most logically completes the argument?

选项:

答案:

E
2答疑

[Data Sufficiency]

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题目：

Lists S and T consist of the same number of positive integers.  Is the median of the integers in S greater than the average (arithmetic mean) of the integers in T?
(1)   The integers in S are consecutive even integers, and the integers in T are consecutive odd integers.
(2)     The sum of the integers in S is greater than the sum of the integers in T.

选项:

答案:

C
2答疑

[Reading Comprehension]

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文章：

Line         In an effort to explain why business acquisitions
  often fail, scholars have begun to focus on the role
  of top executives of acquired companies. Acquired
  companies that retain their top executives tend to
(5) have more successful outcomes than those that do
  not. Furthermore, existing research suggests that
  retaining the highest-level top executives, such as the
  CEO (chief executive officer) and COO (chief operating
  officer), is related more positively to postacquisition
(10) success than retaining lower-ranked top executives.
  However, this explanation, while insightful, suffers from
  two limitations. First, the focus on positional rank does
  not recognize the variation in length of service that
  may exist in top executive posts across companies,
(15) nor does it address which particular top executives
  (with respect to length of service) should be retained
  to achieve a successful acquisition outcome. Second,
  the relationship between retained top executives and
  acquisition outcomes offered by existing research
(20) is subject to opposing theoretical explanations
  related to length of service. The resource-based view
  (RBV) suggests that keeping acquired company top
  executives with longer organizational tenure would lead
  to more successful outcomes, as those executives
(25) have idiosyncratic and nontransferable knowledge
  of the acquired company that would be valuable for
  the effective implementation of the acquisition. The
  opposing position, offered by the upper echelons
  perspective (UEP), suggests that retaining top
(30) executives having short organizational tenure would
  lead to more successful outcomes, as they would have
  the adaptability to manage most effectively during the
  uncertainty of the acquisition process.
       Responding to these limitations, Bergh conducted
(35) a study of executive retention and acquisition
  outcome that focused on the organizational tenure of
  retained company top executives in 104 acquisitions,
  followed over 5 years. Bergh considered the
  acquisition successful if the acquired company was
(40) retained and unsuccessful if it was divested. Bergh’s
  findings support the RBV position. Apparently, the
  benefits of long organizational tenure lead to more
  successful outcomes than the benefits of short
  organizational tenure. While longer tenured top
(45) executives may have trouble adapting to change, it
  appears that their perspectives and knowledge bases
  offer unique value after the acquisition. Although
  from the UEP position it seems sensible to retain
  less tenured executives and allow more tenured
(50) ones to leave, such a strategy appears to lower the
  probability of acquisition success.


题目：

According to the passage, the research mentioned in line 6 suggests which of the following about lower-ranked top executives and postacquisition success?

选项:

A、Given that these executives are unlikely to contribute to postacquisition success, little effort should be spent trying to retain them.
B、The shorter their length of service, the less likely it is that these executives will play a significant role in postacquisition success.
C、These executives are less important to postacquisition success than are more highly ranked top executives.
D、If they have long tenures, these executives may prove to be as important to postacquisition success as are more highly ranked top executives.
E、Postacquisition success is unlikely if these executives are retained.

答案:

C
2答疑

[Reading Comprehension]

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文章：

In the seventeenth-century Florentine textile industry, women were employed primarily in low paying, low-skill jobs. To explain this segregation of labor by gender, economists have relied on the useful theory of human capital. According to this theory, investment in human capital—the acquisition of difficult job-related skills—generally benefits individuals by making them eligible to engage in well-paid occupations. Women’s role as child bearers, however, results in interruptions in their participation in the job market (as compared with men’s) and thus reduces their opportunities to acquire training for highly skilled work. In addition, the human capital theory explains why there was a high concentration of women workers in certain low-skill jobs, such as weaving, but not in others, such as combing or carding, by positing that because of their primary responsibility in child rearing women took occupations that could be carried out in the home.

There were, however, differences in pay scales that cannot be explained by the human capital theory. For example, male construction workers were paid significantly higher wages than female taffeta weavers. The wage difference between these two low-skill occupations stems from the segregation of labor by gender: because a limited number of occupations were open to women, there was a large supply of workers in their fields, and this "overcrowding" resulted in women receiving lower wages and men receiving higher wages.

题目：

The author of the passage would be most likely to describe the explanation provided by the human capital theory for the high concentration of women in certain occupations in the seventeenth-century Florentine textile industry as

选项:

A、well founded though incompletedifficult to articulate
B、plausible but poorly substantiated
C、seriously flawed
D、contrary to recent research(This passage was adapted from an article written in 1992.)

答案:

A
2答疑

[Problem Solving]

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题目：

The operation Ä is defined for all nonzero numbers a and b by a Ä b = a/b – b/a.  If x and y are nonzero numbers, which of the following statements must be true?
 
 
I.                  x Ä xy = x(1 Ä y)
II.                 x Ä y = -(y Ä x)
III.               1/x Ä 1/y = y Ä x
 

选项:

A、I only
B、II only
C、III only
D、I and II
E、II and III

答案:

E
2答疑

[Data Sufficiency]

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题目：

Leo can buy a certain computer for p1 dollars in State A, where the sales tax is t1 percent, or he can buy the same computer for p2 dollars in State B, where the sales tax is t2 percent. Is the total cost of the computer greater in State A than in State B ?
(1)     t1 ＞ t2
(2)     p1t1 ＞ p2t2

选项:

答案:

E
2答疑

[Data Sufficiency]

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题目：

If x3y4 = 5,000, is y = 5?
(1)     y is a positive integer.
(2)     x is an integer.

选项:

答案:

C
2答疑

[Sentence Correction]

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题目：

As a result of a supernova explosion, every human being on Earth was bombarded on February 23, 1987, by about 100 billion neutrinos; fortunately, neutrinos are harmless elementary particles that are produced in nuclear reactions and that interact very weakly with matter.

选项:

A、 neutrinos are harmless elementary particles that are produced in nuclear reactions and that
B、 neutrinos, which are harmless, are elementary particles produced in nuclear reactions and which
C、 neutrinos are harmless elementary particles produced in nuclear reactions and which
D、 these harmless elementary particles are produced in nuclear reactions, and neutrinos
E、 these elementary particles, harmless products of nuclear reactions, are neutrinos that

答案:

A
2答疑

[Critical Reasoning]

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文章：

One of the limiting factors in human physical performance is the amount of oxygen that is absorbed by the muscles from the bloodstream. Accordingly, entrepreneurs have begun selling at gymnasiums and health clubs bottles of drinking water, labeled "SuperOXY," that has extra oxygen dissolved in the water. Such water would be useless in improving physical performance, however, since the amount of oxygen in the blood of someone who is exercising is already more than the muscle cells can absorb.

题目：

Which of the following, if true, would serve the same function in the argument as the statement in boldface?

选项:

A、world-class athletes turn in record performances without such waterfrequent physical exercise increases the body's ability to take in and use oxygen 
B、the only way to get oxygen into the bloodstream so that it can be absorbed by the muscles is through the lungs 
C、lack of oxygen is not the only factor limiting human physical performance
D、the water lost in exercising can be replaced with ordinary tap water

答案:

C
2答疑

[Data Sufficiency]

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题目：

If a, b, c, and d are positive numbers, is ?

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:

B
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1928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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5017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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5698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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1909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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4127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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2889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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1911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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2001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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426419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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433557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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