问答

1答疑

[Data Sufficiency]

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试题详情

题目：

On a recent trip, Mary drove 50 miles. What was the average speed at which she drove the 50 miles?
(1) She drove 30 miles at an average speed of 60 miles per hour and then drove the remaining 20 miles at an average speed of 50 miles per hour.
(2) She drove a total of 54 minutes.

选项:

A、Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B、Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C、BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D、EACH statement ALONE is sufficient.
E、Statements (1) and (2) TOGETHER are NOT sufficient.

答案:

D
1答疑

[Sentence Correction]

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题目：

Many of the earliest known images of Hindu deities in India date from the time of the Kushan empire, fashioned either from the spotted sandstone of Mathura or Gandharan grey schist.

选项:

A、empire, fashioned either from the spotted sandstone of Mathura or
B、empire, fashioned from either the spotted sandstone of Mathura or from
C、empire, either fashioned from the spotted sandstone of Mathura or
D、empire and either fashioned from the spotted sandstone of Mathura or from
E、empire and were fashioned either from the spotted sandstone of Mathura or from

答案:

E
1答疑

[Problem Solving]

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题目：

Of the books standing in a row on a shelf, an atlas is the 30th book from the left and the 33rd book from the right. If 2 books to the left of the atlas and 4 books to the right of the atlas are removed from the shelf, how many books will be left on the shelf?

选项:

A、56
B、57
C、58
D、61
E、63

答案:

A
1答疑

[Critical Reasoning]

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文章：

According to a review of 61 studies of patients suffering from severely debilitating depression, a large majority of the patients reported that missing a night's sleep immediately lifted their depression. Yet sleep-deprivation is not used to treat depression even though the conventional treatments, which use drugs and electric shocks, often have serious side effects.

题目：

Which of the following, if true, best explains the fact that sleep-deprivation is not used as a treatment for depression?

选项:

A、For a small percentage of depressed patients, missing a night's sleep induces a temporary sense of euphoria.Keeping depressed patients awake is more difficult than keeping awake people who are not depressed.
B、Prolonged loss of sleep can lead to temporary impairment of judgment comparable to that induced by consuming several ounces of alcohol.
C、The dramatic shifts in mood connected with sleep and wakefulness have not been traced to particular changes in brain chemistry. 
D、Depression returns in full force as soon as the patient sleeps for even a few minutes. 

答案:

E
1答疑

[Sentence Correction]

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题目：

Fossils of the arm of a sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of the Greater Antilles Islands.

选项:

A、sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of
B、sloth, that they found in Puerto Rico in 1991, has been dated at 34 million years old, thus making it the earliest mammal known on
C、sloth that was found in Puerto Rico in 1991, was dated at 34 million years old, making this the earliest known mammal of
D、sloth, found in Puerto Rico in 1991, have been dated at 34 million years old, making the sloth the earliest known mammal on
E、sloth which, found in Puerto Rico in 1991, was dated at 34 million years old, made the sloth the earliest known mammal of

答案:

D
1答疑

[Sentence Correction]

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题目：

Scientists have recently discovered what could be the largest and oldest living organism on Earth, a giant fungus that is an interwoven filigree of mushrooms and rootlike tentacles spawned by a single fertilized spore some 10,000 years ago and extending for more than 30 acres in the soil of a Michigan forest.

选项:

A、extending
B、extends
C、extended
D、it extended
E、is extending

答案:

A
1答疑

[Sentence Correction]

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题目：

Many kitchens today are equipped with high-speed electrical gadgets, such as blenders and food processors, which are able to inflict as serious injuries as those caused by an industrial wood-planing machine.

选项:

答案:

E
1答疑

[Sentence Correction]

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题目：

There are no legal limits, as there are for cod and haddock, on the size of monkfish that can be caught, a circumstance that contributes to their depletion through overfishing.

选项:

A、There are no legal limits, as there are for cod and haddock, on the size of monkfish that can be caught, a circumstance that contributes to their depletion through overfishing.
B、There are no legal limits on the size of monkfish that can be caught, unlike cod or haddock, a circumstance that contributes to depleting them because they are being overfished.
C、There are legal limits on the size of cod and haddock that can be caught, but not for monkfish, which contributes to its depletion through overfishing.
D、Unlike cod and haddock, there are no legal size limits on catching monkfish, which contributes to its depletion by being overfished.
E、Unlike catching cod and haddock, there are no legal size limits on catching monkfish, contributing to their depletion because they are overfished.

答案:

A
1答疑

[Sentence Correction]

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试题详情

题目：

Architects and stonemasons, huge palace and temple clusters were built by the Maya without benefit of the wheel or animal transport.

选项:

A、huge palace and temple clusters were built by the Maya without benefit of the wheel or animal transport 
B、without the benefits of animal transport or the wheel, huge palace and temple clusters were built by the Maya 
C、the Maya built huge palace and temple clusters without the benefit of animal transport or the wheel 
D、there were built, without the benefit of the wheel or animal transport, huge palace and temple clusters by the Maya 
E、were the Maya who, without the benefit of the wheel or animal transport, built huge palace and temple clusters

答案:

C
1答疑

[Reading Comprehension]

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文章：

题目：

It can be inferred from the passage that a large plant might have to spend more than a similar but smaller plant on environmental compliance because the larger plant is

选项:

A、more likely to attract attention from local regulators
B、less likely to be exempt from permit and reporting requirements
C、less likely to have regulatory costs passed on to it by companies that supply its raw materials
D、more likely to employ older production technologies
E、more likely to generate wastes that are more environmentally damaging than those generated by smaller plants

答案:

B
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1141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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3251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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3603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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1195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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2747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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1887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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1212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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1272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
0评分
302054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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309181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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