问答

4答疑

[Sentence Correction]

试题详情

题目:

According to one expert, the cause of genetic irregularities in many breeds of dog is not so much that dogs are being bred for looks or to meet other narrow criteria as that the breeds have relatively few founding members.

选项:

A、the cause of genetic irregularities in many breeds of dog is not so much that dogs are being bred for looks or to meet other narrow criteria
B、the cause of genetic irregularities in many breeds of dog is not as much their being bred for looks or meeting other narrow criteria as much
C、it is not so much the cause of genetic irregularities in many breeds of dog that they are being bred for looks or meeting other narrow criteria as much
D、it is not so much that the cause of genetic irregularities in many breeds of dog is their being bred for looks or meeting other narrow criteria so much
E、it is not so much the cause of genetic irregularities in many breeds of dog to be bred for looks or to meet other narrow criteria

答案:

A
4答疑

[Sentence Correction]

试题详情

题目:

Building on civilizations that preceded them in coastal Peru, the Mochica developed their own elaborate society, based on cultivating such crops like corn and beans, the harvesting of fish and shellfish, and exploiting other wild and domestic resources.

选项:

A、based on cultivating such crops like corn and beans, the harvesting of fish and shellfish, and exploiting
B、based on the cultivation of such crops as corn and beans, the harvesting of fish and seafood, and the exploitation of
C、and basing it on the cultivation of crops like corn and beans, harvesting fish and seafood, and the exploiting of
D、and they based it on their cultivation of crops such as corn and beans, the harvest of fish and seafood, and exploiting
E、and they based it on their cultivating such crops like corn and beans, their harvest of fish and shellfish, and they exploited

答案:

B
4答疑

[Problem Solving]

试题详情

题目:

选项:

A、I only
B、I and II only
C、I and III only
D、II and III only
E、I, II, and III

答案:

B
4答疑

[Reading Comprehension]

试题详情

文章:

Line         Scientists long believed that two nerve clusters in
  the human hypothalamus, called suprachiasmatic
  nuclei (SCNs), were what controlled our circadian
  rhythms. Those rhythms are the biological cycles
(5) that recur approximately every 24 hours in
  synchronization with the cycle of sunlight and
  darkness caused by Earth’s rotation. Studies have
  demonstrated that in some animals, the SCNs
  control daily fluctuations in blood pressure, body
(10) temperature, activity level, and alertness, as well as
  the nighttime release of the sleep-promoting agent
  melatonin. Furthermore, cells in the human retina
  dedicated to transmitting information about light
  levels to the SCNs have recently been discovered.
(15)      Four critical genes governing circadian cycles
  have been found to be active in every tissue,
  however, not just the SCNs, of flies, mice, and
  humans. In addition, when laboratory rats that
  usually ate at will were fed only once a day, peak
(20) activity of a clock gene in their livers shifted by
  12 hours, whereas the same clock gene in the
  SCNs remained synchronized with light cycles. While
  scientists do not dispute the role of the SCNs in
  controlling core functions such as the regulation of
(25) body temperature and blood pressure, scientists
  now believe that circadian clocks in other organs
  and tissues may respond to external cues other than
  light—including temperature changes—that recur
  regularly every 24 hours.


题目:

The author of the passage would probably agree with which of the following statements about the SCNs?

选项:

A、The SCNs are found in other organs and tissues of the body besides the hypothalamus.
B、The SCNs play a critical but not exclusive role in regulating circadian rhythms.
C、The SCNs control clock genes in a number of tissues and organs throughout the body.
D、The SCNs are a less significant factor in regulating blood pressure than scientists once believed.
E、The SCNs are less strongly affected by changes in light levels than they are by other external cues.

答案:

B
4答疑

[Critical Reasoning]

试题详情

题目:

Since it has become known that several of a bank’s top executives have been buying shares in their own bank, the bank’s depositors, who had been worried by rumors that the bank faced impending financial collapse, have been greatly relieved. They reason that, since top executives evidently have faith in the bank’s financial soundness, those worrisome rumors must be false. Such reasoning might well be overoptimistic, however, since corporate executives have been known to buy shares in their own company in a calculated attempt to dispel negative rumors about the company’s health.

In the argument given, the two boldfaced portions play which of the following roles?

选项:

A、The first describes evidence that has been taken as supporting a conclusion; the second gives a reason for questioning that support.
B、The first describes evidence that has been taken as supporting a conclusion; the second states a contrary conclusion that is the main conclusion of the argument.
C、The first provides evidence in support of the main conclusion of the argument; the second states that conclusion.
D、The first describes the circumstance that the argument as a whole seeks to explain; the second gives the explanation that the argument seeks to establish.
E、The first describes the circumstance that the argument as a whole seeks to explain; the second provides evidence in support of the explanation that the argument seeks to establish.

答案:

A
4答疑

[Sentence Correction]

试题详情

题目:

Before 1988, insurance companies in California were free to charge whatever rates the market would bear, needing no approval from regulators before raising rates.

选项:

答案:

A
4答疑

[Reading Comprehension]

试题详情

文章:

In a new book about the antiparty feeling of the early political leaders of the United States, Ralph Ketcham argues that the first six Presidents differed decisively from later Presidents because the first six held values inherited from the classical humanist tradition of eighteenth-century England. In this view, government was designed not to satisfy the private desires of the people but to make them better citizens; this tradition stressed the disinterested devotion of political leaders to the public good.  Justice, wisdom, and courage were more important qualities in a leader than the ability to organize voters and win elections.  Indeed, leaders were supposed to be called to office rather than to run for office.  And if they took up the burdens of public office with a sense of duty, leaders also believed that such offices were naturally their due because of their social preeminence or their contributions to the country.  Given this classical conception of leadership, it is not surprising that the first six Presidents condemned political parties.  Parties were partial by definition, self-interested, and therefore serving something other than the transcendent public good.
 
Even during the first presidency (Washington's), however, the classical conception of virtuous leadership was being undermined by commercial forces that had been gathering since at least the beginning of the eighteenth century.  Commerce--its profit-making, its self-interestedness, its individualism--became the enemy of these classical ideals.  Although Ketcham does not picture the struggle in quite this way, he does rightly see Jackson's tenure (the seventh presidency) as the culmination of the acceptance of party, commerce, and individualism.  For the Jacksonians, nonpartisanship lost its relevance, and under the direction of Van Buren, party gained a new legitimacy.  The classical ideals of the first six Presidents became identified with a privileged aristocracy, an aristocracy that had to be overcome in order to allow competition between opposing political interests.  Ketcham is so strongly committed to justifying the classical ideals, however, that he underestimates the advantages of their decline.  For example, the classical conception of leadership was incompatible with our modern notion of the freedoms of speech and press, freedoms intimately associated with the legitimacy of opposing political parties.

题目:

Which of the following, if true, provides the LEAST support for the author's argument about commerce and political parties during Jackson's presidency?

选项:

A、Many supporters of Jackson resisted the commercialization that could result from participation in a national economy.
B、Protest against the corrupt and partisan nature of political parties in the United States subsided during Jackson's presidency.
C、During Jackson's presidency the use of money became more common than bartering of goods and services.
D、More northerners than southerners supported Jackson because southerners were opposed to the development of a commercial economy.
E、Andrew Jackson did not feel as strongly committed to the classical ideals of leadership as George Washington had felt.

答案:

A
4答疑

[Data Sufficiency]

试题详情

题目:

If m and n are positive integers, what is the value of
  1. mn = 12
  2. is in lowest terms and is in lowest terms.

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:

C
4答疑

[Sentence Correction]

试题详情

题目:

With a new park, stadium, and entertainment complex along the Delaware River, Trenton, New Jersey, is but one of a large number of communities that is looking to use its waterfront as a way for it to improve the quality of urban life and attract new businesses.

选项:

A、is looking to use its waterfront as a way for it to improve the quality of urban life and attract
B、is looking at using its waterfront to improve the quality of urban life and attract
C、are looking to use their waterfronts to improve the quality of urban life and attract
D、are looking to use its waterfront as a way of improving the quality of urban life and attracting
E、are looking at using their waterfronts as a way of improving the quality of urban life and attract

答案:

C
4答疑

[Critical Reasoning]

试题详情

题目:

Economist:  On average, the emergency treatment for an elderly person for injuries resulting from a fall costs $11,000.  A new therapeutic program can significantly reduce an elderly person's chances of falling.  Though obviously desirable for many reasons, this treatment program will cost $12,500 and thus cannot be justified.
 
Which of the following, if true, most seriously undermines the conclusion of the argument?

选项:

A、Among elderly people who had followed the program for only a few months, the number of serious falls reported was higher than it was for people who had followed the program for its recommended minimum length of one year.
B、Falls resulting in serious injuries are less common among elderly people living in nursing homes than they are among elderly people who live alone at home.
C、A frequent result of injuries sustained in falls is long-term pain, medication for which is not counted among the average per-person costs of emergency treatment for elderly people's injuries from such falls.
D、The new therapeutic program focuses on therapies other than medication, since overmedication can cause disorientation and hence increase the likelihood that an elderly person will have a serious fall.
E、A significant portion of the cost of the new therapeutic program is represented by regular visits by health care professionals, the costs of which tend to increase more rapidly than do those of other elements of the program.

答案:

C
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829浏览

[Undefined]

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?
0评分
2511浏览

[Undefined]

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
0评分
2750浏览

[Undefined]

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
0评分
947浏览

[Undefined]

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?
0评分
2187浏览

[GWD]

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
0评分
1510浏览

[OG]

The primary purpose of the passage is to
为什么选E不选B
0评分
968浏览

[Undefined]

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
0评分
1024浏览

[Undefined]

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
238973浏览

[Undefined]

Analytical!
请问may老师,这题该用什么思路来做?
0评分
246097浏览

[Undefined]

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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