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[Sentence Correction]

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题目：

Astronomers have uncovered evidence that a star that was as bright as the full moon exploding into view 340,000 years ago, emitting dazzling radiation that could have disrupted Earth's protective ozone layer and sunburned our Stone Age ancestors.

选项:

A、that a star that was as bright as the full moon exploding into view 340,000 years ago, emitting
B、that a star as bright as the full moon exploded into view 340,000 years ago, emitting
C、of a star that was as bright as the full moon exploding into view 340,000 years ago and that it emitted
D、of a star as bright as the full moon, exploding into view 340,000 years ago and emitting
E、of a star as bright as the full moon that exploded into view 340,000 years ago and that emitted

答案:

B
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[Sentence Correction]

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题目：

The ecosystems of barrier islands are extremely vulnerable--whether from natural processes like shoreline recession, rising sea levels, and destructive hurricanes, or the ever-increasing pressures of development.

选项:

A、whether from natural processes like shoreline recession, rising sea levels, and destructive hurricanes, or
B、whether from natural processes such as shoreline recession, rising sea levels, and destructive hurricanes, or also
C、to processes that are natural like shoreline recession, rising sea levels, and destructive hurricanes, and also
D、to processes that are natural ones like shoreline recession, rising sea levels, and destructive hurricanes, as well as to
E、to natural processes such as shoreline recession, rising sea levels, and destructive hurricanes, as well as to

答案:

E
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[Critical Reasoning]

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题目：

Hutonian Government Official:  Federal law requires truck drivers to take a long break after driving for ten hours, but truck drivers frequently do not comply.  Since the public rest areas along our highways cannot accommodate all the drivers needing a break, we plan to build more rest areas to increase the rate of compliance.
 
Hutonian Business Representative:  But if the parking lots around our businesses are considered, there are more than enough parking places.
Which of the following, if true about Hutonia, would provide a reason for persisting with the government official's plan despite the objection?

选项:

A、Public parking areas are evenly distributed along the highways.
B、Truck drivers are most likely not to comply with the federal law if the total time required for a trip exceeds ten hours by less than an hour.
C、In comparison to public rest areas, private parking lots near highways tend to be time-consuming for drivers to reach.
D、Even when rest areas are available, some truck drivers park in places, such as highway access ramps, where their trucks are likely to cause accidents.
E、Some public parking areas, particularly those on heavily traveled roads, are substantially larger than others.

答案:

C
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题目：

Although at one time children's programming had been limited to a few hours a week, now, however, there are at least four cable networks that dedicate themselves entirely to shows produced specifically for children.

选项:

A、Although at one time children's programming had been limited to a few hours a week, now, however, there are at least four cable networks that dedicate themselves
B、With children's programming having been limited at one time to a few hours a week, now at least four cable networks have dedicated themselves
C、Once limited to a few hours a week, there are now at least four cable networks with children's programming that dedicate themselves
D、Children's programming was once limited to a few hours a week, but now there are at least four cable networks dedicated
E、While children's programming had once been limited to a few hours a week, at least four cable networks are now dedicated

答案:

D
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[Reading Comprehension]

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文章：

    In mid-February 1917 a women's movement independent of political affiliation erupted in Line New York City, the stronghold of the Socialist party in the United states. Protesting against the high cost of living, thousands of women refused to buy chickens, fish, and vegetables. The boycott shut down much of the City's foodstuffs marketing for two weeks, riveting public attention on the issue of food prices, which had increased partly as a result of increased exports of food to Europe that had been occurring since the outbreak of the First World War.

    By early 1917 the Socialist party had established itself as a major political presence in New York City. New York Socialists, whose customary spheres of struggle were electoral work and trade union organizing, seized the opportunity and quickly organized an extensive series of cost-of-living protests designed to direct the women's movement toward Socialist goals. Underneath the Socialists' brief commitment to cost-of-living organizing lay a basic indifference to the issue itself. While some Socialists did view price protests as a direct step toward socialism, most Socialists ultimately sought to divert the cost-of-living movement into alternative channels of protest. Union organizing, they argued, was the best method through which to combat the high cost of living. For others, cost-of-living or oganizing was valuable insofar as it led women into the struggle for suffrage, and similarly, the suffrage struggle was valuable insofar as it moved United States society one step closer to socialism.

    Although New York's Socialists saw the cost-of-living issue as, at best ,secondary or tertiary to the real task at hand, the boycotters, by sharp contrast, joined the price protest movement out of an urgent and deeply felt commitment to the cost-of-living issue. A shared experience of swiftly declining living standards caused by rising food prices drove these women to protest. Consumer organizing spoke directly to their daily lives and concerns; they saw cheaper food as a valuable end in itself. Food price protests were these women's way of organizing at their own workplace, as workers whose occupation was shopping and preparing food for their families.

题目：

According to the passage ,most New York  Socialists believed which of the following about the cost-of-living movement?

选项:

A、It was primarily a way to interest women in joining the Socialist party.
B、It was an expedient that was useful only insofar as it furthered other goals.
C、It would indirectly result in an increase in the number of women who belonged to labor unions.
D、It required a long-term commitment but Inevitably represented a direct step Toward socialism.
E、It served as an effective complement to union organizing.

答案:

B
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[Problem Solving]

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题目：

S is a set of integers such that
I) If x is in S, then –x is in S.
II) If both x and y are in S, then so is x + y.
Is –2 in S?
 (1) 1 is in S.
(2) 0 is in S.
 

选项:

A、A. if statement (1) ALONE is sufficient to answer the question but statement (2) alone is not sufficient;
B、B. if statement (2) ALONE is sufficient to answer the question but statement (1) alone is not sufficient;
C、C. if the two statements TAKEN TOGETHER are sufficient to answer the question, but NEITHER statement ALONE is sufficient;
D、D. if EACH statement ALONE is sufficient to answer the question;
E、E. if the two statements TAKEN TOGETHER are still NOT sufficient to answer the question.

答案:

A
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[Reading Comprehension]

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文章：

Line         Jacob Burckhardt’s view that Renaissance
  European women “stood on a footing of perfect
  equality” with Renaissance men has been repeatedly
  cited by feminist scholars as a prelude to their
(5) presentation of rich historical evidence of women’s
  inequality. In striking contrast to Burckhardt, Joan
  Kelly in her famous 1977 essay, “Did Women Have
  a Renaissance?” argued that the Renaissance was
  a period of economic and social decline for women
(10) relative both to Renaissance men and to medieval
  women. Recently, however, a significant trend
  among feminist scholars has entailed a rejection
  of both Kelly’s dark vision of the Renaissance and
  Burckhardt’s rosy one. Many recent works by these
(15) scholars stress the ways in which differences
  among Renaissance women—especially in terms
  of social status and religion—work to complicate
  the kinds of generalizations both Burckhardt and
  Kelly made on the basis of their observations about
(20) upper-class Italian women.
       The trend is also evident, however, in works
  focusing on those middle- and upper-class
  European women whose ability to write gives them
  disproportionate representation in the historical
(25) record. Such women were, simply by virtue of
  their literacy, members of a tiny minority of the
  population, so it is risky to take their descriptions of
  their experiences as typical of “female experience”
  in any general sense. Tina Krontiris, for example, in
(30) her fascinating study of six Renaissance women
  writers, does tend at times to conflate “women” and
  “women writers,” assuming that women’s gender,
  irrespective of other social differences, including
  literacy, allows us to view women as a homogeneous
(35) social group and make that group an object of
  analysis. Nonetheless, Krontiris makes a significant
  contribution to the field and is representative of
  those authors who offer what might be called a
  cautiously optimistic assessment of Renaissance
(40) women’s achievements, although she also stresses
  the social obstacles Renaissance women faced
  when they sought to raise their “oppositional
  voices.” Krontiris is concerned to show women
  intentionally negotiating some power for themselves
(45) (at least in the realm of public discourse) against
  potentially constraining ideologies, but in her sober
  and thoughtful concluding remarks, she suggests
  that such verbal opposition to cultural stereotypes
  was highly circumscribed; women seldom attacked
(50) the basic assumptions in the ideologies that
  oppressed them.


题目：

The last sentence in the passage serves primarily to

选项:

A、suggest that Krontiris’s work is not representative of recent trends among feminist scholars
B、undermine the argument that literate women of the Renaissance sought to oppose social constraints imposed on them
C、show a way in which Krontiris’s work illustrates a “cautiously optimistic” assessment of Renaissance women’s achievements
D、summarize Krontiris’s view of the effect of literacy on the lives of upper- and middle-class Renaissance women
E、illustrate the way in which Krontiris’s study differs from the studies done by Burckhardt and Kelly

答案:

C
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[Critical Reasoning]

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文章：

Certain messenger molecules fight damage to the lungs from noxious air by telling the muscle cells encircling the lungs'airways to contract.This partially seals off the lungs.An asthma attack occurs when the messenger molecules are activated unnecessarily, in response to harmless things like pollen or household dust.

题目：

Which of the following, if true, points to the most serious flaw of a plan to develop a medication that would prevent asthma attacks by blocking receipt of any messages sent by the messenger molecules referred to above?

选项:

A、Researchers do not yet know how the body produces the messenger molecules that trigger asthma attacks.Researchers do not yet know what makes one person's messenger molecules more easily activated than another's. 
B、Such a medication would not become available for several years, because of long lead times in both development and manufacture.
C、Such a medication would be unable to distinguish between messages triggered by pollen and household dust and messages triggered by noxious air. 
D、Such a medication would be a preventative only and would be unable to alleviate an asthma attack once it had started. 

答案:

D
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文章：

Lyme disease is caused by a bacterium transmitted to humans by deer ticks. Generally, deer ticks pick up the bacterium while in the larval stage by feeding on infected white-footed mice. However, certain other species on which the larvae feed do not harbor the bacterium. If the population of these other species were increased, more of the larvae would be feeding on uninfected hosts, so the number of ticks acquiring the bacterium would likely decline.

题目：

Which of the following would it be most important to ascertain in evaluating the argument?

选项:

A、Whether populations of the other species on which deer tick larvae feed are found only in areas also inhabited by white-footed miceWhether the size of the deer tick population is currently limited by the availability of animals for the tick's larval stage to feed on
B、Whether the infected deer tick population could be controlled by increasing the number of animals that prey on white-footed mice
C、Whether deer ticks that were not infected as larvae can become infected as adults by feeding on deer on which infected deer ticks have fed
D、Whether the other species on which deer tick larvae feed harbor any other bacteria that ticks transmit to humans 

答案:

B
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题目：

Cost cutting and restructuring has allowed the manufacturing company to lower its projected losses for the second quarter, and they are forecasting a profit before the end of the year.

选项:

答案:

D
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1929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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5699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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1912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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426510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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433648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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