问答

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[Sentence Correction]

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题目：

Seldom more that 40 feet wide and 12 feet deep, but it ran 363 miles across the rugged wilderness of upstate New York, the Erie Canal connected the Hudson River at Albany to the Great Lakes at Buffalo, providing the port of New York City with a direct water link to the heartland of the North American continent.
 

选项:

A、Seldom more than 40 feet wide and 12 feet deep, but it ran 363 miles across the rugged wilderness of upstate New York, the Erie Canal connected
B、Seldom more than 40 feet wide or 12 feet deep but running 363 miles across the rugged wilderness of upstate New York, the Erie Canal connected
C、It was seldom more than 40 feet wide and 12 feet deep, and ran 363 miles across the rugged wilderness of upstate New York, but the Erie Canal, connecting
D、The Erie Canal was seldom more than 40 feet wide or 12 feet deep and it ran 363 miles across the rugged wilderness of upstate New York, which connected
E、The Erie Canal, seldom more than 40 feet wide and 12 feet deep, but running 363 miles across the rugged wilderness of upstate New York, connecting

答案:

B
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[Critical Reasoning]

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题目：

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?

选项:

A、The cooling effect triggered by volcanic eruptions in 1985 was counteracted by an unusual warming of Pacific waters.
B、There is a strong statistical link between volcanic eruptions and the severity of the rainy season in India.
C、A few months after El Chichn's large eruption in April 1982, air temperatures throughout the region remained higher than expected, given the long-term weather trends.
D、The climatic effects of major volcanic eruptions can temporarily mask the general warming trend resulting from an excess of carbon dioxide in the atmosphere.
E、Three months after an early springtime eruption in South America during the late 19th century, sea surface temperatures near the coast began to fall.

答案:

C
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题目：

Though subject to the same wild-animal control efforts that killed off almost all the wolves in North America over the past century, the coyote's amazing ability of adapting to the presence of humans has enabled it to expend its range into Alaska and Central America.

选项:

A、coyote's amazing ability of adapting to the presence of humans has enabled it to expend its
B、coyote, because of its amazing ability of adapting to the presence of humans, have been able to expand their
C、coyote, because of its amazing ability to adapt to the presence of humans, has been able to expand its
D、amazing ability of the coyote to adapt to the presence of humans have enabled it to expand the
E、amazing ability of the coyote to adapt to the presence of humans has enabled it to expand the

答案:

C
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[Problem Solving]

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题目：

A certain company assigns employees to offices in such a way that some of the offices can be empty and more than one employee can be assigned to an office.  In how many ways can the company assign 3 employees to 2 different offices?

选项:

A、5
B、6
C、7
D、8
E、9

答案:

D
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题目：

There is a widespread belief in the United States and Western Europe that young people have a smaller commitment to work and a career than their parents and grandparents and that the source of the change lies in the collapse of the "work ethic."

选项:

A、a smaller commitment to work and a career than their parents and grandparents
B、less of a commitment to work and a career than their parents and grandparents
C、a smaller commitment to work and a career than that of their parents and grandparents
D、less of a commitment to work and a career than their parents and grandparents had
E、a lessening of the commitment to work and a career that their parents and grandparents had

答案:

D
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题目：

Arctic terns, being true long-distance migrants , they nest in
coastal wetlands of northern Europe but fly south for thou-
sands of miles to spend the European winters in Antarctica.

选项:

A、Arctic terns , being true long distance migrants , they nest in coastal wetlands of northern Europe
B、Arctic terns are true long distance migrants , nesting in coastal wetlands of northern Europe
C、Being that they are true long distance migrants , arctic terns nest in coastal wetlands of northern Europe
D、Nesting in coastal wetlands of northem Europe , arctic terns are true long distant migrants
E、True long distance migrants , arctic terns nest in coastal wetlands of northem Europe

答案:

E
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题目：

After decreasing steadily in the mid-1990's, the percentage of students in the United States finishing high school or having earned equivalency diplomas increased in the last three years of the decade, up to 86.5 percent in 2000 from 85.9 percent in 1999 and 84.8 percent in 1998.

选项:

A、 finishing high school or having earned equivalency diplomas increased in the last three years of the decade, up to 86.5 percent in 2000 from 85.9 percent in 1999 and
B、 finishing high school or earning equivalency diplomas, increasing in the last three years of the decade, rising to 86.5 percent in 2000 from 85.9 percent in 1999 and from
C、 having finished high school or earning an equivalency diploma increased in the last three years of the decade, and rose to 86.5 percent in 2000 from 85.9 percent in 1999 and from
D、 who either finished high school or they earned an equivalency diploma, increasing in the last three years of the decade, rose to 86.5 percent in 2000 from 85.9 percent in 1999 and
E、 who finished high school or earned equivalency diplomas increased in the last three years of the decade, to 86.5 percent in 2000 from 85.9 percent in 1999 and

答案:

E
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[Critical Reasoning]

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题目：

Mel: The official salary for judges has always been too low to attract the best Candidates to the job. The legislature's move to raise the salary has
done nothing to improve the situation, because it was coupled with a ban on receiving money for lectures and teaching engagements. Pat:  No, the raise in salary really does improve the situation. Since very few judges teach or give lectures, the ban will have little or no negative effect.

Pat's response to Mel is inadequate in that it

选项:

A、attempts to assess how a certain change will affect potential members of a group by providing evidence about its effect on the current members.
B、mistakenly takes the cause of a certain change to be an effect of that change
C、attempts to argue that a certain change will have a positive effect merely by pointing to the absence of negative effects
D、simply denies Mel's claim without putting forward any evidence in support of that denial
E、assumes that changes that benefit the most able members of a group necessarily benefit all members of that group.

答案:

A
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[Reading Comprehension]

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文章：

    Prior to 1965 geologists assumed that the two giant rock plates meeting at the San Andreas Fault generate heat through friction as they grind past each other, but in 1965 Henyey found that temperatures in drill holes near the fault were not as elevated as had been expected. Some geologists wondered whether the absence of friction-generated heat could be explained by the kinds of rock composing the fault. Geologists' pre-1965 assumptions concerning heat generated in the fault were based on calculations about common varieties of rocks, such as limestone and granite; but "weaker" materials, such as clays,had already been identified in samples retrieved from the fault zone. Under normal conditions, rocks composed of clay produce far less friction than do other rock types.

    In 1992 Byerlee tested whether these materials would produce friction 10 to 15 kilometers below the Earth's surface. Byerlee found that when clay samples were subjected to the thousands of atmospheres of pressure they would encounter deep inside the Earth, they produced as much friction as was produced by other rock types. The harder rocks push against each other, the hotter they become; in other words, pressure itself, not only the rocks' properties, affects frictional heating. Geologists therefore wondered whether the friction between the plates was being reduced by pockets of pressurized water within the fault that push the plates away from each other.

题目：

The passage suggests which of the following regarding Henyey's findings about temperature in the San Andreas Fault?

选项:

A、Scientists have yet to formulate a definitive explanation for Henyey's findings.
B、Recent research suggests that Henyey's explanation for the findings should be modified.
C、Henyey's findings had to be recalculated in light of Byerlee's 1992 experiment.
D、Henyey's findings provided support for an assumption long held by geologists.
E、Scientists have been unable to duplicate Henyey's findings using more recent experimental methods.

答案:

A
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题目：

Plant scientists have been able to genetically engineer vegetable seeds to produce crops that are highly resistant to insect damage. Although
these seeds currently cost more than conventional seeds, their cost is likely to decline. Moreover, farmers planting them can use far less pesticide, and most consumers prefer vegetables grown with less pesticide,therefore, for crops for which these seeds can be developed, their use is likely to become the norm.
 
which of the following would be most useful to know in evaluating the argument above?

选项:

A、Whether plant scientists have developed insect-resistant seeds For every crop that is currently grown commercially
B、Whether farmers typically use agricultural pesticides in larger Amounts than is necessary to prevent crop damage.
C、Whether plants grown from the new genetically engineered seeds Can be kept completely free of insect damage.
D、Whether seeds genetically engineered to produce insect-resistant crops generate significantly lower per acre crop yields than do currently used seeds.
E、Whether most varieties of crops currently grown commercially have Greater natural resistance to insect damage than did similar vari-eties in the past.

答案:

B
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[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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[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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[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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[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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[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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[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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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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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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