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题目：

In1852 Robert Angus Smith published a detailed report
of the chemistry of rain kin a large area around the city of
Manchester, England ,noting that the closer one came to
town, the more the city air would become increasingly acidic

选项:

A、that the closer one came to town, the mote the city air would become increasingly acidic
B、that the city air became increasingly acidic the closer one came to town
C、that coming closer to town, the city air became increasingly acidic
D、that the more the city air became increasingly acidic, the closer one was to town,
E、the city air becoming increasingly acidic as one would come closer to town

答案:

B
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题目：

Several financial officers of the company spoke on condition that they not be named in the press reports.

选项:

A、that they not be named
B、that their names will not be used
C、that their names are not used
D、of not having their names
E、of not naming them

答案:

A
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题目：

In no other historical sighting did Halley's comet cause such a worldwide sensation as did its return in 1910-1911.

选项:

A、did its return in 1910-1911
B、had its 1910-1911 return
C、in its return of 1910-1911
D、its return of 1910-1911 did
E、its return in 1910-1911

答案:

C
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题目：

Marconi's conception of the radio was as a substitute for the telephone, a tool for private conversation; instead, it is precisely the opposite, a tool for communicating with a large, public audience.

选项:

A、Marconi's conception of the radio was as a substitute for the telephone, a tool for private conversation; instead, it is
B、Marconi conceived of the radio as a substitute for the telephone, a tool for private conversation, but which is
C、Marconi conceived of the radio as a tool for private conversation that could substitute for the telephone; instead, it has become
D、Marconi conceived of the radio to be a tool for private conversation, a substitute for the telephone, which has become
E、Marconi conceived of the radio to be a substitute for the telephone, a tool for private conversation, other than what it is,

答案:

C
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题目：

A shortage of orders for Manto Aircraft's airliners has led analysts to predict that the manufacturer will have to lay workers ,the new order that consolidated airlines has just made for 20 of Manto's model TX jets does not provide a reason for the analysts to revise their predictions ,because simultaneously with its new order , consolidated canceled its existing order for an equal number of manto's larger, more expensive model Z jets
 
which of the following ,if true, most seriously weakens the argument?

选项:

A、Manto relies more heavily on outside subcontractors to provide the labor to manufacture the Model Z than it does the Model TX
B、The Manto employees who currently work to manufacture the model Z are Not proficient at manufacturing the model TX
C、Manto includes all required maintenance work for the first five years in the price of each jet it sells .
D、Manto has had to lay off workers several times within the past ten years but has typically rehired many of the workers when it subsequently received new orders
E、A large number of the airliners in consolidated is fleet are at the beginning of their expected service life

答案:

A
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题目：

Laos has a land area about the same as Great Britain but only four million in population, where many are members of hill tribes ensconced in the virtually inaccessible mountain valleys of the north.

选项:

A、about the same as Great Britain but only four million in population, where many
B、of about the same size as Great Britain is, but in Laos there is a population of only four million, and many
C、that is about the same size as Great Britain's land area, but in Laos with a population of only four million people, many of them
D、comparable to the size of Great Britain, but only four million in population, and many
E、comparable to that of Great Britain but a population of only four million people, many of whom

答案:

E
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题目：

It was only after Katharine Graham became publisher of The Washington Post in 1963 that it moved into the first rank of American newspapers, and it was under her command that the paper won high praise for its unrelenting reporting of the Watergate scandal.

选项:

A、 It was only after Katharine Graham became publisher of The Washington Post in 1963 that it moved into the first rank of American newspapers, and it was under her command that the paper won high praise
B、 It was only after Katharine Graham's becoming publisher of The Washington Post in 1963 that it moved into the first rank of American newspapers, and under her command it had won high praise
C、 Katharine Graham became publisher of The Washington Post in 1963, and only after that did it move into the first rank of American newspapers, having won high praise under her command
D、 Moving into the first rank of American newspapers only after Katharine Graham became its publisher in 1963, The Washington Post, winning high praise under her command
E、 Moving into the first rank of American newspapers only after Katharine Graham's becoming its publisher in 1963, The Washington Post won high praise under her command

答案:

A
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题目：

Gas hydrates, chemical compounds of water and natural gas, are increasingly being studied for their potential to be huge reservoirs of energy, possibly causing sea floor instability, and significant contributors to global warming.

选项:

A、to be huge reservoirs of energy, possibly causing sea floor instability, and
B、to be huge reservoirs of energy, possibly causing sea floor instability, and even as
C、as huge reservoirs of energy, possibly causing sea floor instability, and
D、as huge reservoirs of energy, and the possible cause of sea floor instability,
E、as huge reservoirs of energy, as possible causes of sea floor instability, and even as

答案:

A
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题目：

The fact of some fraternal twins resembling each other greatly and others looking quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely they vary considerably on a spectrum of genetic relatedness.

选项:

A、The fact of some fraternal twins resembling each other greatly and others looking quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely they vary considerably
B、That some fraternal twins resemble each other greatly while others look quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely that they vary considerably
C、With some fraternal twins resembling each other greatly and others looking quite dissimilar, it highlights an interesting and often overlooked feature of fraternal-twin pairs, namely considerable variation
D、With some fraternal twins resembling each other greatly and others looking quite dissimilar, it is a fact that highlights an interesting and often overlooked feature of fraternal-twin pairs, namely a considerable variation
E、Because some fraternal twins resemble each other greatly and others look quite dissimilar, this fact highlights an interesting and often overlooked feature of fraternal-twin pairs, namely they vary considerably

答案:

B
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题目：

The first English settlers to establish a permanent colony in America did it not at Plymouth but along the shore of the James River west of Chesapeake Bay.

选项:

A、it not at Plymouth but
B、so not at Plymouth but
C、not at Plymouth but instead
D、not at Plymouth but did so
E、it not at Plymouth but rather

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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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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[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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