问答

3答疑

[Reading Comprehension]

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文章：

题目：

According to the passage, each of the following is a difference between women's oral narratives and most standard histories EXCEPT:

选项:

A、Women's oral histories validate the significance of women's achievements.
B、Women's oral histories depict experience from the point of view of women.
C、Women's oral histories acknowledge the influence of well-known women.
D、Women's oral histories present today's women with a sense of their historical relationship to women of the past.
E、Women's oral histories are crucial to the collective identity of today's women.

答案:

C
3答疑

[Sentence Correction]

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题目：

In despite of the steady population flow out from rural areas into urban clusters, nearly 5 million farm households are still in Japan out of a total population of some 116 million people.

选项:

A、In despite of the steady population flow out from rural areas into urban clusters, nearly 5 million farm households are still in Japan
B、In spite of the steady population flow out from rural areas into urban clusters, nearly 5 million farm households are still in Japan
C、Despite the steady population flow from rural areas into urban clusters, Japan’s farm households are still nearly 5 million
D、Despite the steady population flow from rural areas to urban clusters, there are still nearly 5 million farm households in Japan
E、In Japan, despite the steady population flow out from rural areas into urban clusters, still there are nearly 5 million farm households

答案:

D
3答疑

[Critical Reasoning]

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题目：

A manufacturer of workstations for computer-aided design seeks to increase sales to its most important corporate customers.  Its strategy is to publish very low list prices for workstations in order to generate interest among the buyers for those corporations.
 
Which of the following, if characteristic of the marketplace, would tend to cause the manufacturer's strategy to fail?

选项:

A、The proposed list prices would seem low to a typical buyer for the manufacturer's most important corporate customers.
B、The capabilities of workstations suitable for given jobs are not significantly different among various manufacturers.
C、The manufacturer's most important corporate customers employ as buyers persons who are very knowledgeable about prices for workstations for customer-aided design.
D、Customers differ significantly in the percentage of resources they can devote to computer workstations.
E、Buyers for corporations that purchase workstations for computer-aided design receive bonuses for negotiating large discounts from the list price.

答案:

E
3答疑

[Critical Reasoning]

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题目：

Because mining and refining nickel is costly, researchers have developed an alternative method for extracting nickel using Streptanthus polygaloides, a plant that absorbs and stores nickel form the soil as it grows.  The researchers incinerated a crop of Streptanthus they grew in nickel-rich soil.  By chemically extracting nickel from the ash, they produced 100 pounds of nickel per acre of land at a total cost per pound slightly above that of current mining.
 
Which of the following, if true, most strongly supports the conclusion that the use of Streptanthus to extract nickel will be commercially adopted?

选项:

A、The season in which the researchers grew Streptanthus was an unusually favorable one, with the right amount of precipitation to maximize the growth rate of Streptanthus.
B、Because lowering the concentration of nickel in the soil can make land much better for agriculture in general, a plot on which Streptanthus has been grown and harvested can be sold for substantially more than it cost.
C、More air pollution is generated for each pound of nickel produced by extracting it from Streptanthus than is generated using conventional mining and refining.
D、The land on which the researchers planted Streptanthus was unusually free of the various weeds that can compete with Streptanthus for water, nutrients, and sunlight.
E、It is extremely rare for soil to contain higher concentrations of nickel than the concentrations present in the researchers' experimental plot.

答案:

B
3答疑

[Reading Comprehension]

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文章：

    Astronomers theorize that a black hole forms when a massive object shrinks catastrophically under its own gravity, leaving only a gravitational field so strong that nothing escapes it. Astronomers must infer the existence of black holes, which are invisible, from their gravitational influence on the visible bodies surrounding them. For example, observations indicate that gas clouds in galaxy M87 are whirling unusually fast about the galaxy's center. Most astronomers believe that the large concentration of mass at the galaxy's center is a black hole whose gravity is causing the gas to whirl. A few skeptics have argued that the concentration of mass necessary to explain the speed of the whirling gas is not necessarily a black hole: the concentration in M87 might be a cluster of a billion or so dim stars.

    The same hypothesis might have been applied to the galaxy NGC 4258, but the notion of such a cluster's existing in NGC 4258 was severely undermined when astronomers measured the speed of a ring of dust and gas rotating close to the galaxy's center. From its speed, they calculated that the core's density is more than 40 times the density estimated for any other galaxy. If the center of NGC 4258 were a star cluster, the stars would be so closely spaced that collisions between individual stars would have long ago torn the cluster apart.

题目：

Which of the following, if true, would most clearly undermine the possible explanation for the whirling gas in M87 that is mentioned in the last sentence of the first paragraph?

选项:

A、The stars in a star cluster at the center of M87 could exert a strong gravitational force without tearing the cluster apart.
B、A cluster of stars at the center would preclude the existence of certain other astronomical phenomena that have been observed at the center of M87.
C、The stars within many existing galaxies, such as NGC 4258, are more closely spaced than are the stars within the core of M87.
D、Only one other galaxy has been observed to contain gas clouds whirling about its center as they do about the core of M87.
E、The gravitational force of a cluster of a billion or so dim stars would be sufficient to cause a whirling ring of gas and dust to collect around the center of a galaxy.

答案:

B
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[Critical Reasoning]

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题目：

In countries where automobile insurance includes compensation for whiplash injuries sustained in automobile accidents, reports of having suffered such injuries are twice as frequent as they are in countries where whiplash is not covered.  Presently, no objective test for whiplash exists, so it is true that spurious reports of whiplash injuries cannot be readily identified.  Nevertheless, these facts do not warrant a conclusion that has been drawn by some commentators:  that in the countries with the higher rates of reported whiplash injuries, half of the reported cases are spurious.  Clearly, in countries where automobile insurance does not include compensation for whiplash, people often have little incentive to report whiplash injuries that they actually have suffered.
 
In the argument given, the two boldfaced portions play which of the following roles?

选项:

A、The first is a claim that the argument disputes; the second is a conclusion that has been based on that claim.
B、The first is claim that has been used to support a position that the argument accepts; the second is a position that the argument rejects.
C、The first is a finding whose accuracy is evaluated in the argument; the second is the judgment reached by the argument concerning the accuracy of the finding.
D、The first is a finding whose implications are at issue in the argument; the second is the judgment reached by the argument concerning one alleged implication.
E、The first is a finding, the explanation of which is at issue in the argument; the second is an objection that has been raised against the explanation that the argument defends.

答案:

D
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[Sentence Correction]

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题目：

Like their male counterparts, women scientists are above average in terms of intelligence and creativity, but unlike men of science, their female counterparts have had to work against the grain of occupational stereotyping to enter a "man's world."

选项:

A、their female counterparts have had to work
B、their problem is working
C、one thing they have had to do is work
D、the handicap women of science have had is to work
E、women of science have had to work

答案:

E
3答疑

[Argument Essay]

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题目：

Read the statement and the instructions that follow it, and then make any notes that will help you plan your response. Begin typing your response in the box at the bottom of the screen.
 
"When choosing whether to work in color or in black-~and-white, the photographer .  who wishes to be successful should keep in mind that because color photographs are more true-to-life, magazines use more color photographs than black-and-white ones ,and  many newspapers are also starting to use color photographs. The realism of color also accounts for the fact that  most portrait studios use more color film than black -and-white film. Furthermore, there are more types of color film than black-and-white film available today. Clearly, photographers who work in color have an advantage over those who work in black-and-white."
 
Discuss how well reasoned. . .etc

选项:

答案:

3答疑

[Critical Reasoning]

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题目：

Scientists typically do their most creative work before the age of forty. It is commonly thought that this happens because aging by itself brings about a loss of creative capacity. However, studies show that of scientists who produce highly creative work beyond the age of forty, a disproportionately large number entered their field at an older age than is usual. Since by the age of forty the large majority of scientists have been working in their field for at least fifteen years, the studies’ finding strongly suggests that the real reason why scientists over forty rarely produce highly creative work is not that they have aged but rather that scientists over forty have generally spent too long in their field.

In the argument given, the two portions in boldface play which of the following roles?

选项:

A、The first is a claim, the accuracy of which is at issue in the argument; the second is a conclusion drawn on the basis of that claim.
B、The first is an objection that has been raised against a position defended in the argument; the second is that position.
C、The first is evidence that has been used to support an explanation that the argument challenges; the second is that explanation.
D、The first is evidence that has been used to support an explanation that the argument challenges; the second is a competing explanation that the argument favors.
E、The first provides evidence to support an explanation that the argument favors; the second is that explanation.

答案:

E
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[Sentence Correction]

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题目：

Rejecting the apprenticeship model of training social workers in philanthropic agencies, twentieth-century reformer Edith Abbott was convinced of social work education belonging in the university so that students could be offered a broad range of courses dealing with social issues. 

选项:

A、of social work education belonging in the university so that
B、that social work education should be in the university, and that
C、about the importance of social work education belonging in the university while
D、that social work education belonged in the university, where
E、of the necessity of social work education being in the university and

答案:

D
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574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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1733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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1936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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721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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1643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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1147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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770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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789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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181276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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188390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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