问答

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[Sentence Correction]

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题目：

In California, a lack of genetic variation in the Argentine ant has allowed the species to spread widely; due to their being so genetically similar to one another, the ants consider all their fellows to be a close relative and thus do not engage in the kind of fierce intercolony struggles that limits the spread of this species in its native Argentina.

选项:

A、due to their being so genetically similar to one another, the ants consider all their fellows to be a close relative and thus do not engage in the kind of fierce intercolony struggles that limits.
B、Due to its being so genetically similar the ant considers all its fellows to be a close relative and thus does not engage in the kind of fierce intercolnny struggles that limit.
C、Because it is so genetically similar, the ant considers all its fellows to be close relatives and thus does not engage in the kind of fierce intercolony struggles that limits.
D、Because they are so genetically similar to one another, the ants consider all their fellows to be close relatives and thus do not engage in the kind of fierce intercolony struggles that limit.
E、Because of being so genetically similar to one another, the ants consider all their fellows to be a close relative and thus do not engage in the kind of fierce intercolony struggles that limits.

答案:

D
9答疑

[Reading Comprehension]

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文章：

(This passage was excerpted from material published in 1996.)

    When a large body strikes a planet or moon, material is ejected, thereby creating a hole in the planet and a local deficit of mass. This deficit shows up as a gravity anomaly: the removal of the material that has been ejected to make the hole results in an area of slightly lower gravity than surrounding areas. One would therefore expect that all of the large multi-ring impact basins on the surface of Earth's Moon would show such negative gravity anomalies, since they are, essentially, large holes in the lunar surface. Yet data collected in 1994 by the Clementine spacecraft show that many of these lunar basins have no anomalously low gravity and some even have anomalously high gravity. Scientists speculate that early in lunar history, when large impactors struck the Moon's surface, causing millions of cubic kilometers of crustal debris to be ejected, denser material from the Moon's mantle rose up beneath the impactors almost immediately, compensating for the ejected material and thus leaving no low gravity anomaly in the resulting basin. Later, however, as the Moon grew cooler and less elastic, rebound from large impactors would have been only partial and incomplete. Thus today such gravitational compensation probably would not occur: the outer layer of the Moon is too cold and stiff.

题目：

The passage suggests that if the scientists mentioned in the highlighted text are correct in their speculations, the large multi-ring impact basins on the Moon with the most significant negative gravity anomalies probably

选项:

A、were not formed early in the Moon's history
B、were not formed by the massive ejection of crustal debris
C、are closely surrounded by other impact basins with anomalously low gravity
D、were created by the impact of multiple large impactors
E、were formed when the Moon was relatively elastic

答案:

A
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[Sentence Correction]

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题目：

The Organization of Petroleum Exporting Countries (OPEC) had long been expected to announce a reduction in output to bolster sagging oil prices, but officials of the organization just recently announced that the group will pare daily production by 1.5 million barrels by the beginning of next year, but only if non-OPEC nations, including Norway, Mexico, and Russia, were to trim output by a total of 500,000 barrels a day.

选项:

A、year, but only if non-OPEC nations, including Norway, Mexico, and Russia, were to trim output
B、year, but only if the output of non-OPEC nations, which includes Norway, Mexico, and Russia, is trimmed
C、year only if the output of non-OPEC nations, including Norway, Mexico, and Russia, would be trimmed
D、year only if non-OPEC nations, which includes Norway, Mexico, and Russia, were trimming output
E、year only if non-OPEC nations, including Norway, Mexico, and Russia, trim output

答案:

E
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[Critical Reasoning]

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题目：

In 1992 outlaw fishing boats began illegally harvesting lobsters from the territorial waters of the country of Belukia.  Soon after, the annual tonnage of lobster legally harvested in Belukian waters began declining; in 1996, despite there being no reduction in the level of legal lobster fishing activity, the local catch was 9,000 tons below pre-1992 levels.  It is therefore highly likely that the outlaw fishing boats harvested about 9,000 tons of lobster illegally that year.
 
Which of the following is an assumption on which the argument depends?

选项:

A、The illegal lobster harvesting was not so extensive that the population of catchable lobsters in Belukia's territorial waters had sharply declined by 1996.
B、The average annual lobster catch, in tons, of an outlaw fishing boat has increased steadily since 1992.
C、Outlaw fishing boats do not, as a group, harvest more lobsters than do licensed lobster-fishing boats.
D、The annual legal lobster harvest in Belukia in 1996 was not significantly less than 9,000 tons.
E、A significant proportion of Belukia's operators of licensed lobster-fishing boats went out of business between 1992 and 1996.

答案:

A
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[Sentence Correction]

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题目：

The Acoma and Hopi are probably the two oldest surviving Pueblo communities, both dating back at least a thousand years.

选项:

A、both dating
B、both of which have dated
C、and each has dated
D、and each one dating
E、each one of which date

答案:

A
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[Sentence Correction]

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题目：

Unlike mainstream American businesses, more than half of which fail, the failure rate for businesses in the Amish community hovers around 5 percent.

选项:

A、Unlike mainstream American businesses, more than half of which fail
B、Unlike mainstream American businesses, in which the failure rate is more than half
C、Unlike mainstream American businesses, where more than half of them fail
D、While the rate of mainstream American businesses failing is more than half
E、While more than half of mainstream American businesses fail

答案:

E
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[Sentence Correction]

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题目：

India, like Italy and China, has no single dominant cuisine:  Indian food comprises many different styles of cooking, with each a product of their regional influences, from the fiery vegetarian dishes of the south to the Portuguese-influenced Goan cooking of the west, to the more familiar Mogul food of the north.

选项:

A、 with each a product of their
B、 with each as a product of its
C、 each products of their
D、 each a product of
E、 each products of

答案:

D
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[Sentence Correction]

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题目：

Traffic safety officials predict that drivers will be equally likely to exceed the proposed speed limit as the current one.

选项:

A、equally likely to exceed the proposed speed limit as
B、equally likely to exceed the proposed speed limit as they are
C、equally likely that they will exceed the proposed speed limit as
D、as likely that they will exceed the proposed speed limit as
E、as likely to exceed the proposed speed limit as they are.

答案:

E
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[Critical Reasoning]

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题目：

In an experiment, each volunteer was allowed to choose between an easy task and a hard task and was told that another volunteer would do the other task. Each volunteer could also choose to have a computer assign the two tasks randomly. Most volunteers chose the easy task for themselves and under questioning later said they had acted fairly. But when the scenario was described to another group of volunteers, almost all said choosing the easy task would be unfair. This shows that most people apply weaker moral standards to themselves than to others.

Which of the following is an assumption required by this argument?

选项:

A、At least some volunteers who said they had acted fairly in choosing the easy task would have said that it was unfair for someone else to do so.
B、The most moral choice for the volunteers would have been to have the computer assign the two tasks randomly.
C、There were at least some volunteers who were assigned to do the hard task and felt that the assignment was unfair.
D、On average, the volunteers to whom the scenario was described were more accurate in their moral judgments than the other volunteers were.
E、At least some volunteers given the choice between assigning the tasks themselves and having the computer assign them felt that they had made the only fair choice available to them.

答案:

A
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[Critical Reasoning]

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题目：

Which of the following, if true, most logically completes the passage?
 
A recent poll found that over 80 percent of the residents of Nalmed Province favored a massive expansion of the commuter rail system as a means of significantly easing congestion on the province's highways and were willing to help pay for the expansion through an increase in their taxes.  Nevertheless, the poll results indicate that expansion of the rail system, if successfully completed, would be unlikely to achieve its goal of easing congestion, because _______.

选项:

A、most people in favor of expanding the rail system reported less congestion during their highway commute as the primary benefit they would experience
B、of the less than 20 percent of residents not counted as favoring the expansion, about half claimed to have no opinion one way or the other
C、the twice-daily periods of peak congestion caused by people commuting in cars have grown from about an hour each to almost two and a half hours each in the past 20 years
D、expanding the commuter rail system will require the construction of dozens of miles of new railbed
E、the proposed expansion to the commuter rail system will make it possible for some people who both live and work at suburban locations to commute by rail

答案:

A
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489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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1549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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1744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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655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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1493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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1068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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707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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719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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171555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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178669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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