问答

1答疑

[Problem Solving]

试题详情

题目:

If S is the sum of all the integers from 1 to 30, inclusive, what is the greatest prime factor of S ?

选项:

A、3
B、5
C、29
D、31
E、37

答案:

D
1答疑

[Reading Comprehension]

试题详情

文章:

Line         Acting on the recommendation of a British
  government committee investigating the high
  incidence in white lead factories of illness among
  employees, most of whom were women, the Home
(5) Secretary proposed in 1895 that Parliament enact
  legislation that would prohibit women from holding
  most jobs in white lead factories. Although the
  Women’s Industrial Defence Committee (WIDC),
  formed in 1892 in response to earlier legislative
(10) attempts to restrict women’s labor, did not discount
  the white lead trade’s potential health dangers, it
  opposed the proposal, viewing it as yet another
  instance of limiting women’s work opportunities.
       Also opposing the proposal was the Society for
(15) Promoting the Employment of Women (SPEW),
  which attempted to challenge it by investigating the
  causes of illness in white lead factories. SPEW
  contended, and WIDC concurred, that controllable
  conditions in such factories were responsible for
(20) the development of lead poisoning. SPEW provided
  convincing evidence that lead poisoning could be
  avoided if workers were careful and clean and if
  already extant workplace safety regulations were
  stringently enforced. However, the Women’s Trade
(25) Union League (WTUL), which had ceased in the late
  1880s to oppose restrictions on women’s labor,
  supported the eventually enacted proposal, in part
  because safety regulations were generally not being
  enforced in white lead factories, where there were
(30) no unions (and little prospect of any) to pressure
  employers to comply with safety regulations.


题目:

The passage suggests that WIDC differed from WTUL in which of the following ways?

选项:

A、WIDC believed that the existing safety regulations were adequate to protect women’s health, whereas WTUL believed that such regulations needed to be strengthened.
B、WIDC believed that unions could not succeed in pressuring employers to comply with such regulations, whereas WTUL believed that unions could succeed in doing so.
C、WIDC believed that lead poisoning in white lead factories could be avoided by controlling conditions there, whereas WTUL believed that lead poisoning in such factories could not be avoided no matter how stringently safety regulations were enforced.
D、At the time that the legislation concerning white lead factories was proposed, WIDC was primarily concerned with addressing health conditions in white lead factories, whereas WTUL was concerned with improving working conditions in all types of factories.
E、At the time that WIDC was opposing legislative attempts to restrict women’s labor, WTUL had already ceased to do so.

答案:

E
1答疑

[Critical Reasoning]

试题详情

题目:

Plantings of cotton bioengineered to produce its own insecticide against bollworms, a major cause of crop failure, sustained little bollworm damage until this year. This year the plantings are being seriously damaged by bollworms. Bollworms, however, are not necessarily developing resistance to the cotton's insecticide. Bollworms breed on corn, and last year more corn than usual was planted throughout cotton-growing regions. So it is likely that the cotton is simply being overwhelmed by corn-bred bollworms.

In evaluating the argument, which of the following would it be most useful to establish?

选项:

答案:

B
1答疑

[Reading Comprehension]

试题详情

文章:

Line In current historiography, the picture of a consistent,
unequivocal decline in women’s status with the advent
of capitalism and industrialization is giving way to an
analysis that not only emphasizes both change (whether
(5) improvement or decline) and continuity but also
accounts for geographical and occupational variation.
The history of women’s work in English farmhouse
cheese making between 1800 and 1930 is a case in
point. In her influential Women Workers and the Industrial
(10) Revolution (1930), Pinchbeck argued that the agricultural
revolution of the eighteenth and early nineteenth
centuries, with its attendant specialization and enlarged
scale of operation, curtailed women’s participation in
the business of cheese production. Earlier, she
(15) maintained, women had concerned themselves with
feeding cows, rearing calves, and even selling the
cheese in local markets and fairs. Pinchbeck thought
that the advent of specialization meant that women’s
work in cheese dairying was reduced simply to
(20) processing the milk. “Dairymen” (a new social category)
raised and fed cows and sold the cheese through
factors, who were also men. With this narrowing of the
scope of work, Pinchbeck believed, women lost
business ability, independence, and initiative.
(25) Though Pinchbeck portrayed precapitalist,
preindustrial conditions as superior to what followed,
recent scholarship has seriously questioned the notion
of a golden age for women in precapitalist society. For
example, scholars note that women’s control seldom
(30) extended to the disposal of the proceeds of their
work. In the case of cheese, the rise of factors may
have compromised women’s ability to market cheese
at fairs. But merely selling the cheese did not
necessarily imply access to the money: Davidoff cites
(35) the case of an Essex man who appropriated all but a
fraction of the money from his wife’s cheese sales.
By focusing on somewhat peripheral operations,
moreover, Pinchbeck missed a substantial element
of continuity in women’s participation: throughout the
(40) period women did the central work of actually
making cheese. Their persistence in English cheese
dairying contrasts with women’s early disappearance
from arable agriculture in southeast England and
from American cheese dairying. Comparing these
(45) three divergent developments yields some reasons
for the differences among them. English cheese-
making women worked in a setting in which cultural
values, agricultural conditions, and the nature of
their work combined to support their continued
(50) participation. In the other cases, one or more of
these elements was lacking.

题目:

The passage describes the work of Pinchbeck primarily in order to

选项:

答案:

B
1答疑

[Reading Comprehension]

试题详情

文章:

    Acting on the recommendation of a British government committee investigating the high incidence in white lead factories of illness among employees, most of whom were women, the Home Secretary proposed in 1895 that Parliament enact legislation that would prohibit women from holding most jobs in white lead factories. Although the Women's Industrial Defence Committee (WIDC), formed in 1892 in response to earlier legislative attempts to restrict women's labor, did not discount the white lead trade's potential health dangers, it opposed the proposal, viewing it as yet another instance f limiting women's work opportunities. Also opposing the proposal was the Society for Promoting the Employment of Women (SPEW), which attempted to challenge it by investigating the causes of illness in white lead factories. SPEW contended, and WIDC concurred, that controllable conditions in such factories were responsible for the development of lead poisoning. SPEW provided convincing evidence that lead poisoning could be avoided if workers were careful and clean and if already extant workplace safety regulations were stringently enforced. However, the Women's Trade Union League (WTUL), which had ceased in the late 1880's to oppose restrictions on women's labor, supported the eventually enacted proposal, in part because safety regulations were generally not being enforced in white lead factories, where there were no unions (and little prospect of any) to pressure employers to comply with safety regulations.

题目:

The passage is primarily concerned with

选项:

A、presenting various groups' views of the motives of those proposing certain legislation
B、contrasting the reasoning of various groups concerning their positions on certain proposed legislation
C、tracing the process whereby certain proposed legislation was eventually enacted
D、assessing the success of tactics adopted by various groups with respect to certain proposed legislation
E、evaluating the arguments of various groups concerning certain proposed legislation

答案:

B
1答疑

[Sentence Correction]

试题详情

题目:

Although the term "psychopath" is popularly applied to an especially brutal criminal, in psychology it is someone who is apparently incapable of feeling compassion or the pangs of conscience.

选项:

A、it is someone who is
B、it is a person
C、they are people who are
D、it refers to someone who is
E、it is in reference to people

答案:

D
1答疑

[Sentence Correction]

试题详情

题目:

According to a study published in The New England Journal of Medicine, aspirin prevents blood clots just as well as a commonly used and more expensive blood-thinning drug does.

选项:

A、prevents blood clots just as well as a commonly used and more expensive blood-thinning drug does
B、prevents blood clots just as well as does a commonly used and a more expensive blood-thinning drug
C、prevents blood clots just as well as will a commonly used and more expensive blood-thinning drug
D、works just as well as a commonly used and more expensive blood-thinning drug at the prevention of blood clots
E、works just as well as does a commonly used blood-thinning drug, which is also more expensive, at preventing blood clots

答案:

A
1答疑

[Reading Comprehension]

试题详情

文章:

题目:

According to the passage, scholars of women's history should refrain from doing which of the following?

选项:

A、Relying on traditional historical sources when women's oral narratives are unavailable
B、Focusing on the influence of political rhetoric on women's perceptions to the exclusion of other equally important factors
C、Attempting to discover the cultural and historical factors that influence the stories women tell
D、Assuming that the conventions of women's written autobiographies are similar to the conventions of women's oral narratives
E、Accepting women's oral narratives less critically than they accept women's written histories

答案:

E
1答疑

[Reading Comprehension]

试题详情

题目:

Which of the following, if true, would seriously undermine the validity of the conclusions drawn from the experiment described in the last paragraph of the passage?

选项:

A、 The algae cells that sank to the bottom of the pond were destroyed only after a time lag of twenty-four hours.
B、 The lateral motility of the algae cells that sank to the bottom of the pond was not impaired.
C、 The water with which the artificial solar pond was diluted contained microorganisms that kill algae.
D、 The algae cells that sank to the bottom of the pond were actually killed by the rapid change in pressure.
E、 The higher salinity brought about through evaporation increased the transparency of the upper levels of water in the pond.

答案:

C
1答疑

[Reading Comprehension]

试题详情

文章:

Maps made by non-Native Americans to depict Native American land tenure, resources andpopulation distributions appeared almost as early as Europeans' first encounters with NativeAmericans and took many form: missionaries' field sketches, explorers' drawings, and surveyors'maps, as well as maps rendered in connection with treaties involving land transfers. Most existingmaps of Native American lands are reconstructions that are based largely on archaeology, oralreports, and evidence gathered from observers' accounts in letter, diaries, and official reports;accordingly, the accuracy of these maps is especially dependent on the mapmakers' owninterpretive abilities.

Many existing maps also reflect the 150-year role of the Bureau of Indian Affairs (BIA) in administering tribal lands. Though these maps incorporate some information gleaned directly from Native Americans, rarely has Native American cartography contributed to this official record, which has been compiled, surveyed, and authenticated by non-Native American tribes and their migrations and cultural features, as well as territoriality and contemporary trust lands, reflects the origins of the data, the mixed purposes for which the maps have been prepared, and changes both I United States government policy and in non-Native Americans’ attitudes toward an understanding of Native Americans.

题目:

The passage mentions each of the following as a factor affecting current maps of Native American lands EXCEPT

选项:

A、United States government policynon-Native Americans' perspective on Native Americans
B、origins of the information utilized to produce the maps
C、changes in ways that tribal lands are used
D、the reason for producing the maps

答案:

D
0评分
334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
1286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
1467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
565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
1318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
940浏览

[OG]

The primary purpose of the passage is to
为什么选E不选B
0评分
631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
637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
150570浏览

[Undefined]

Analytical!
请问may老师,这题该用什么思路来做?
0评分
157678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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