问答

3答疑

[Reading Comprehension]

试题详情

文章:

The United States hospital industry is an unusual market in that nonprofit and for-profit producers exist simultaneously.  Theoretical literature offers conflicting views on whether nonprofit hospitals are less financially efficient.  Theory suggests that nonprofit hospitals are so much more interested in offering high-quality service than in making money that they frequently input more resources to provide the same output of service as for-profit hospitals.  This priority might also often lead them to be less vigilant in streamlining their services--eliminating duplication between departments, for instance.  Conversely, while profit motive is thought to encourage for-profit hospitals to attain efficient production, most theorists admit that obstacles to that efficiency remain.  For-profit hospital managers, for example, generally work independently of hospital owners and thus may not always make maximum financial efficiency their highest priority.  The literature also suggests that widespread adoption of third-party payment systems may eventually eliminate any such potential differences between the two kinds of hospitals.
 
The same literature offers similarly conflicting views of the efficiency of nonprofit hospitals from a social welfare perspective. Newhouse (1970) contends that nonprofit hospital managers unnecessarily expand the quality and quantity of hospital care beyond the actual needs of the community, while Weisbrod (1975) argues that nonprofit firms--hospitals included--contribute efficiently to community welfare by providing public services that might be inadequately provided by government alone.

题目:

According to the passage, Newhouse's view of the social welfare efficiency of nonprofit hospitals differs from Weisbrod's view in that Newhouse

选项:

A、contends that government already provides most of the services that communities need
B、argues that for-profit hospitals are better at meeting actual community needs than are nonprofit hospitals
C、argues that nonprofit hospitals are likely to spend more to provide services that the community requires than for-profit hospitals are likely to spend
D、argues that nonprofit hospitals ought to expand the services they provide to meet the community's demands
E、believes that the level of care provided by nonprofit hospitals is inappropriate, given the community's requirements

答案:

E
3答疑

[Data Sufficiency]

试题详情

题目:

Does the decimal equivalent of , where p and q are positive integers, contain only a finite number of nonzero digits?
(1)  
(2)   q = 8

选项:

答案:

B
3答疑

[Reading Comprehension]

试题详情

文章:

    The fields of antebellum (pre-Civil War) political history and women's history use separate sources and focus on separate issues. Political historians, examining sources such as voting records, newspapers, and politicians' writings, focus on the emergence in the 1840's of a new "American political nation," and since women were neither voters nor politicians, they receive little discussion. Women's historians, meanwhile, have shown little interest in the subject of party politics, instead drawing on personal papers, legal records such as wills, and records of female associations to illuminate women's domestic lives, their moral reform activities, and the emergence of the woman's rights movement.

    However, most historians have underestimated the extent and significance of women's political allegiance in the antebellum period. For example, in the presidential election campaigns of the 1840's, the Virginia Whig party strove to win the allegiance of Virginia's women by inviting them to rallies and speeches. According to Whig propaganda, women who turned out at the party's rallies gathered information that enabled them to mold party-loyal families, reminded men of moral values that transcended party loyalty, and conferred moral standing on the party. Virginia Democrats, in response, began to make similar appeals to women as well. By the mid-1850's the inclusion of women in the rituals of party politics had become commonplace, and the ideology that justified such inclusion had been assimilated by the Democrats.

题目:

The primary purpose of the passage as a whole is to

选项:

A、examine the tactics of antebellum political parties with regard to women
B、trace the effect of politics on the emergence of the woman's rights movement
C、point out a deficiency in the study of a particular historical period
D、discuss the ideologies of opposing antebellum political parties
E、contrast the methodologies in two differing fields of historical inquiry

答案:

C
3答疑

[Problem Solving]

试题详情

题目:

If x > 0, then 1/[√(2x)+√x] =V

选项:

A、1/√(3x)
B、1/[2√(2x)]
C、1/(x√2)
D、(√2-1)/√x
E、(1+√2)/√x

答案:

D
3答疑

[Sentence Correction]

试题详情

题目:

Financial uncertainties from the accident at Three Mile Island may prove even more deterring to the nuclear industry than political opposition is.

选项:

A、from the accident at Three Mile Island may prove even more deterring to the nuclear industry than political opposition is
B、from the accident at Three Mile Island may prove to be even more serious a deterrent to the nuclear industry than political opposition
C、from the accident at Three Mile Island may prove to be an even more serious deterrent to the nuclear industry than political opposition
D、resulting from the accident at Three Mile Island may prove to be an even more serious deterrent to the nuclear industry than is political opposition
E、resulting from the accident at Three Mile Island may prove even more deterring to the nuclear industry than political opposition

答案:

D
3答疑

[Problem Solving]

试题详情

题目:

At a garage sale, all of the prices of the items sold were different.  If the price of a radio sold at the garage sale was both the 15th highest price and the 20th lowest price among the prices of the items sold, how many items were sold at the garage sale?

选项:

A、33
B、34
C、35
D、36
E、37

答案:

B
3答疑

[Reading Comprehension]

试题详情

文章:

    In her account of unmarried women's experiences in colonial Philadelphia, Wulf argues that educated young women, particularly Quakers, engaged in resistance to patriarchal marriage by exchanging poetry critical of marriage, copying verse into their commonplace books. Wulf suggests that this critique circulated beyond the daughters of the Quaker elite and middle class, whose commonplace books she mines, proposing that Quaker schools brought it to many poor female students of diverse backgrounds.

    Here Wulf probably overstates Quaker schools' impact. At least three years' study would be necessary to achieve the literacy competence necessary to grapple with the material she analyzes. In 1765, the year Wulf uses to demonstrate the diversity of Philadelphia's Quaker schools, 128 students enrolled in these schools. Refining Wulf's numbers by the information she provides on religious affiliation, gender, and length of study, it appears that only about 17 poor non-Quaker girls were educated in Philadelphia's Quaker schools for three years or longer. While Wulf is correct that a critique of patriarchal marriage circulated broadly, Quaker schools probably cannot be credited with instilling these ideas in the lower classes. Popular literary satires on marriage had already landed on fertile ground in a multiethnic population that embodied a wide range of marital beliefs and practices. These ethnic and class-based traditions themselves challenged the legitimacy of patriarchal marriage.

题目:

The primary purpose of the passage is to            

选项:

A、argue against one aspect of Wulf's account of how ideas critical of marriage were disseminated among young women in colonial Philadelphia
B、discuss Wulf's interpretation of the significance for educated young women in colonial Philadelphia of the poetry they copied into their commonplace books
C、counter Wulf's assertions about the impact of the multiethnic character of colonial Philadelphia's population on the prevalent views about marriage
D、present data to undermine Wulf's assessment of the diversity of the student body in Quaker schools in colonial Philadelphia
E、challenge Wulf's conclusion that a critique of marriage was prevalent among young women of all social classes in colonial Philadelphia

答案:

A
3答疑

[Sentence Correction]

试题详情

题目:

A pioneer journalist, Nellie Bly’s exploits included circling the globe faster than Jules Verne’s fictional Phileas Fogg.

选项:

A、A pioneer journalist, Nellie Bly’s exploits included
B、The exploits of Nellie Bly, a pioneer journalist, included
C、Nellie Bly was a pioneer journalist including in her exploits the
D、Included in the pioneer journalist Nellie Bly’s exploits are
E、The pioneer journalist’s exploits of Nellie Bly included

答案:

B
3答疑

[Reading Comprehension]

试题详情

文章:

Line         Milankovitch proposed in the early twentieth
  century that the ice ages were caused by variations
  in the Earth’s orbit around the Sun. For some time
  this theory was considered untestable, largely
(5) because there was no sufficiently precise
  chronology of the ice ages with which the orbital
  variations could be matched.
       To establish such a chronology it is necessary to
  determine the relative amounts of land ice that
(10) existed at various times in the Earth’s past. A
  recent discovery makes such a determination
  possible: relative land-ice volume for a given period
  can be deduced from the ratio of two oxygen
  isotopes, 16 and 18, found in ocean sediments.
(15) Almost all the oxygen in water is oxygen 16, but a
  few molecules out of every thousand incorporate the
  heavier isotope 18. When an ice age begins, the
  continental ice sheets grow, steadily reducing the
  amount of water evaporated from the ocean that
(20) will eventually return to it. Because heavier
  isotopes tend to be left behind when water
  evaporates from the ocean surfaces, the remaining
  ocean water becomes progressively enriched in
  oxygen 18. The degree of enrichment can be
(25) determined by analyzing ocean sediments of the
  period, because these sediments are composed of
  calcium carbonate shells of marine organisms,
  shells that were constructed with oxygen atoms
  drawn from the surrounding ocean. The higher the
(30) ratio of oxygen 18 to oxygen 16 in a sedimentary
  specimen, the more land ice there was when the
  sediment was laid down.
       As an indicator of shifts in the Earth’s climate,
  the isotope record has two advantages. First, it is a
(35) global record: there is remarkably little variation in
  isotope ratios in sedimentary specimens taken from
  different continental locations. Second, it is a
  more continuous record than that taken from rocks
  on land. Because of these advantages, sedimentary
(40) evidence can be dated with sufficient accuracy
  by radiometric methods to establish a precise
  chronology of the ice ages. The dated isotope
  record shows that the fluctuations in global ice
  volume over the past several hundred thousand
(45) years have a pattern: an ice age occurs roughly once
  every 100,000 years. These data have established
  a strong connection between variations in the Earth’s
  orbit and the periodicity of the ice ages.
       However, it is important to note that other
(50) factors, such as volcanic particulates or variations
  in the amount of sunlight received by the Earth,
  could potentially have affected the climate. The
  advantage of the Milankovitch theory is that it
  is testable; changes in the Earth’s orbit can be
(55) calculated and dated by applying Newton’s laws of
  gravity to progressively earlier configurations of the
  bodies in the solar system. Yet the lack of
  information about other possible factors affecting
  global climate does not make them unimportant.


题目:

It can be inferred from the passage that the isotope record taken from ocean sediments would be less useful to researchers if which of the following were true?

选项:

A、It indicated that lighter isotopes of oxygen predominated at certain times.
B、It had far more gaps in its sequence than the record taken from rocks on land.
C、It indicated that climate shifts did not occur every 100,000 years.
D、It indicated that the ratios of oxygen 16 and oxygen 18 in ocean water were not consistent with those found in fresh water.
E、It stretched back for only a million years.

答案:

B
3答疑

[Sentence Correction]

试题详情

题目:

Next month, state wildlife officials are scheduled to take over the job of increasing the wolf population in the federally designated recovery area, the number of which will however ultimately be dictated by the number of prey in the area.

选项:

A、area, the number of which will however
B、area; the size of the population, however, will
C、area, however the number of wolves will
D、area; the number of which will, however,
E、area, when the size of the population will, however,

答案:

B
0评分
791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
2407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
2637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
923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
2115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
1458浏览

[OG]

The primary purpose of the passage is to
为什么选E不选B
0评分
946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
981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
230208浏览

[Undefined]

Analytical!
请问may老师,这题该用什么思路来做?
0评分
237332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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