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1答疑

[Sentence Correction]

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题目：

Bluegrass musician Bill Monroe, whose repertory, views on musical collaboration, and vocal style were influential on generations of bluegrass artists, was also an inspiration to many musicians, that included Elvis Presley and Jerry Garcia, whose music differed significantly from his own.

选项:

答案:

B
1答疑

[Reading Comprehension]

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文章：

Line In addition to conventional galaxies, the universe
contains very dim galaxies that until recently went
unnoticed by astronomers. Possibly as numerous
as conventional galaxies, these galaxies have the
(5) same general shape and even the same
approximate number of stars as a common type of
conventional galaxy, the spiral, but tend to be much
larger. Because these galaxies’ mass is spread out
over larger areas, they have far fewer stars per unit
(10) volume than do conventional galaxies. Apparently
these low-surface-brightness galaxies, as they are
called, take much longer than conventional galaxies
to condense their primordial gas and convert it to
stars—that is, they evolve much more slowly.
(15) These galaxies may constitute an answer to the
long-standing puzzle of the missing baryonic mass
in the universe. Baryons—subatomic particles that
are generally protons or neutrons—are the source
of stellar, and therefore galactic, luminosity, and so
(20) their numbers can be estimated based on how
luminous galaxies are. However, the amount of
helium in the universe, as measured by
spectroscopy, suggests that there are far more
baryons in the universe than estimates based on
(25) galactic luminosity indicate. Astronomers have long
speculated that the missing baryonic mass might
eventually be discovered in intergalactic space or as
some large population of galaxies that are
difficult to detect.

题目：

The author of the passage would be most likely to disagree with which of the following statements?

选项:

A、
Low-surface-brightness galaxies are more difficult to detect than are conventional galaxies.
B、
Low-surface-brightness galaxies are often spiral in shape.
C、
Astronomers have advanced plausible ideas about where missing baryonic mass might be found.
D、
Astronomers have devised a useful way of estimating the total baryonic mass in the universe.
E、
Astronomers have discovered a substantial amount of baryonic mass in intergalactic space.

答案:

E
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[Reading Comprehension]

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文章：

While there is no blueprint for transforming a largely government-controlled economy into a free one, the experience of the United Kingdom since 1979 clearly shows one approach that works: privatization, in which state - owned industries are sold to private companies. By 1979, the total borrowings and losses of state - owned industries were running at about￡3 billion a year. By selling many of these industries, the government has decreased these borrowings and losses, gained over￡34 billion from the sales, and now receives tax revenues from the newly privatized companies. Along with a dramatically improved overall economy, the government has been able to repay 12.5 percent of the net national debt over a two-year period.

In fact, privatization has not only rescued individual industries and a whole economy headed for disaster, but has also raised the level of performance in every area. At British Airways and British Gas, for example, productivity per employee has risen by 20 percent. At Associated British Ports, labor disruptions common in the 1970's and early 1980's have now virtually disappeared. At British Telecom, there is no longer a waiting list - as there always was before privatization - to have a telephone installed.

Part of this improved productivity has come about because the employees of privatized industries were given the opportunity to buy shares in their own companies. They responded enthusiastically to the offer of shares: at British Aerospace, 89 percent of the eligible work force bought shares; at Associated British Ports, 90 percent; and at British Telecom, 92 percent. When people have a personal stake in something, they think about it, care about it, work to make it prosper. At the National Freight Consortium, the new employee - owners grew so concerned about their company's profits that during wage negotiations they actually pressed their union to lower its wage demands.

Some economists have suggested that giving away free shares would provide a needed acceleration of the privatization process. Yet they miss Thomas Paine's point that"what we obtain too cheap we esteem too lightly. "In order for the far - ranging benefits of individual ownership to be achieved by owners' companies I and countries employees and other individuals must make their own decisions to buy, and they must commit some of their own resources to the choice.

题目：

The passage supports which of the following statements about employees buying shares in their own companies?

选项:

A、At three different companies, approximately nine out of ten of the workers were eligible to buy shares in their companies.Approximately 90 percent of the eligible workers at three different companies chose to buy shares in their companies.
B、The opportunity to buy shares was discouraged by at least some labor unions.
C、Companies that demonstrated the highest productivity were the first to allow their employees the opportunity to buy shares.
D、Eligibility to buy shares was contingent on employees' agreeing to increased work loads.

答案:

B
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[Reading Comprehension]

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文章：

题目：

It can be inferred from the passage that the author believes which of the following to be true of the amphibian extinctions that have recently been reported?

选项:

A、They have resulted primarily from human activities causing environmental degradation.
B、They could probably have been prevented if timely action had been taken to protect the habitats of amphibian species.
C、They should not come as a surprise, because amphibian populations generally have been declining for a number of years.
D、They have probably been caused by a combination of chance events.
E、They do not clearly constitute evidence of general environmental degradation.

答案:

E
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[Reading Comprehension]

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文章：

Traditional social science models of class groups in the United States are based on economic status and assume that women's economic status derives from association with men, typically fathers or husbands, and that women therefore have more compelling common interest with men of their own economic class than with women outside it.  Some feminist social scientists, by contrast, have argued that the basic division in American society is instead based on gender, and that the total female population, regardless of economic status, constitutes a distinct class.  Social historian Mary Ryan, for example, has argued that in early-nineteenth-century America the identical legal status of working-class and middle-class free women outweighed the differences between women of these two classes:  married women, regardless of their family's wealth, did essentially the same unpaid domestic work, and none could own property or vote.  Recently, though, other feminist analysts have questioned this model, examining ways in which the condition of working-class women differs from that of middle-class women as well as from that of working-class men.  Ann Oakley notes, for example, that the gap between women of different economic classes widened in the late nineteenth century:  most working-class women, who performed wage labor outside the home, were excluded from the emerging middle-class ideal of femininity centered around domesticity and volunteerism.

题目：

The primary purpose of the passage is to

选项:

A、offer sociohistorical explanations for the cultural differences between men and women in the United States
B、examine how the economic roles of women in the United States changed during the nineteenth century
C、consider differing views held by social scientists concerning women's class status in the United States
D、propose a feminist interpretation of class structure in the United States
E、outline specific distinctions between working-class women and women of the upper and middle classes

答案:

C
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[Sentence Correction]

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题目：

The particular design of muscles and bones in the neck and limbs of the turtle allow that it can draw in its exposed parts such that an attacker can find nothing but hard shell to bite.

选项:

A、 allow that it can draw in its exposed parts such that
B、 allow it to draw in its exposed parts, and so
C、 allows for it to draw in its exposed parts and that
D、 allows that it can draw in its exposed parts, and so
E、 allows it to draw in its exposed parts, so that

答案:

E
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[Sentence Correction]

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题目：

Custodian fees and expenses, as described in the statement of operations, include interest expense incurred by the fund on any cash overdrafts of its custodian account during the period.

选项:

A、include interest expense incurred by the fund on any cash overdrafts of its custodian account during the period
B、are to include interest expenses on any cash overdrafts of its custodian account the fund incurred during the period
C、includes interest expense the fund incurred during the period on any cash overdrafts of its custodian account
D、may include interest expense during the period that the fund was to incur on any cash overdrafts of its custodian account
E、including interest expense on any cash overdrafts of its custodian account incurred by the fund during the period

答案:

A
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[Data Sufficiency]

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题目：

In the figure, points A, B, C, D, and E lie on a line.  A is on both circles, B is the center of the smaller circle, C is the center of the larger circle, D is on the smaller circle, and E is on the larger circle.  What is the area of the region inside the larger circle and outside the smaller circle?
(1)       AB = 3 and BC =2
(2)       CD =1 and DE = 4

选项:

答案:

D
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[Problem Solving]

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题目：

Raymond purchased a package of ground beef at a cost of $1.98 per pound.  If, for the same amount of money, Raymond could have purchased a piece of steak that weighed 40 percent less than the package of ground beef, what was the cost per pound of the steak?

选项:

A、$4.95
B、$4.20
C、$3.60
D、$3.30
E、$3.10

答案:

D
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[Reading Comprehension]

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文章：

题目：

The primary purpose of the passage is to

选项:

A、challenge recent findings that appear to contradict earlier findings
B、present two sides of an ongoing scientific debate
C、report answers to several questions that have long puzzled researchers
D、discuss evidence that has caused a long-standing belief to be revised
E、attempt to explain a commonly misunderstood biological phenomenon

答案:

D
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334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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1290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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1467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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565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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1318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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941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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[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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637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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[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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