问答

1答疑

[Critical Reasoning]

试题详情

文章:

Northern Air has dozens of flights daily into and out of Belleville Airport, which is highly congested. NorthernAir depends for its success on economy and quick turnaround and consequently is planning to replace its largeplanes with Skybuses, whose novel aerodynamic design is extremely fuel efficient. The Skybus' fuel efficiencyresults in both lower fuel costs and reduced time spent refueling.

题目:

Which of the following, if true, could present the most serious disadvantage for Northern Air in replacing theirlarge planes with Skybuses?

选项:

A、The Skybus would enable Northern Air to schedule direct flights to destinations that currently require stopsfor refueling.Aviation fuel is projected to decline in price over the next several years.
B、The fuel efficiency of the Skybus would enable Northern Air to eliminate refueling at some of its destinations, but several mechanics would lose their jobs.
C、None of Northern Air's competitors that use Belleville Airport are considering buying Skybuses. 
D、The aerodynamic design of the Skybus causes turbulence behind it when taking off that forces other planes on the runway to delay their takeoffs.

答案:

E
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:

It can be inferred from the passage that women did work in

选项:

答案:

A
1答疑

[Critical Reasoning]

试题详情

题目:

Jay: Of course there are many good reasons to support the expansion of preventive medical care, but arguments claiming that it will lead to greater societal economic gains are misguided. Some of the greatest societal expenses arise from frequent urgent-care needs for people who have attained a long life due to preventive care.

Sunil: Your argument fails because you neglect economic gains outside the health care system: society suffers an economic loss when any of its productive members suffer preventable illnesses.

Sunil's response to Jay makes which of the following assumptions?

选项:

答案:

D
1答疑

[Problem Solving]

试题详情

题目:

If the integer k  is a multiple of 3, which of the following is also a multiple of 3 ?

选项:

A、k + 2
B、2k + 8
C、3k + 5
D、4k + 4
E、5k + 12

答案:

E
1答疑

[Problem Solving]

试题详情

题目:

In the formula $$V=\frac{1}{(2r)^{3}}$$,if r is halved, then V is multiplied by

选项:

A、64
B、8
C、1
D、1/8
E、1/64

答案:

B
1答疑

[Sentence Correction]

试题详情

题目:

A 1972 agreement between Canada and the United States reduced the amount of phosphates that municipalities had been allowed to dump into the Great Lakes.

选项:

A、reduced the amount of phosphates that municipalities had been allowed to dump
B、reduced the phosphate amount that municipalities had been dumping
C、reduces the phosphate amount municipalities have been allowed to dump
D、reduced the amount of phosphates that municipalities are allowed to dump
E、reduces the amount of phosphates allowed for dumping by municipalities

答案:

D
1答疑

[Problem Solving]

试题详情

题目:

For any integer k greater than 1, the symbol k* denotes the product of all the fractions of

选项:

A、5
B、
C、
D、
E、

答案:

E
1答疑

[Critical Reasoning]

试题详情

文章:

Companies O and P each have the same number of employees who work the same number of hours per week. According to records maintained by each company, the employees of Company O had fewer job-related accidents last year than did the employees of Company P. Therefore, employees of Company O are less likely to have job-related accidents than are employees of Company P

题目:

Which of the following, if true, would most weaken the conclusion above?

选项:

A、The employees of Company P lost more time at work due to job-related accidents than did the employees of Company O.Company P considered more types of accidents to be job-related than did Company O
B、The employees of Company P were sick more often than were the employees of Company O. 
C、Several employees of Company O each had more than one job-related accident.
D、The majority of job-related accidents at Company O involved a single machine.

答案:

B
1答疑

[Problem Solving]

试题详情

题目:

Team A and Team B are competing against each other in a game of tug-of-war. Team A, consisting of 3 males and 3 females, decides to line up male, female, male, female, male, female. The lineup that Team A chooses will be one of how many different possible lineups?

选项:

A、    9
B、  12
C、  15
D、  36
E、720

答案:

D
1答疑

[Critical Reasoning]

试题详情

题目:

Which of the following most logically completes the argument?

A photograph of the night sky was taken with the camera shutter open for an extended period. The normal motion of stars across the sky caused the images of the stars in the photograph to appear as streaks. However, one bright spot was not streaked. Even if the spot were caused, as astronomers believe, by a celestial object, that object could still have been moving across the sky during the time the shutter was open, since __________.

选项:

A、
A. the spot was not the brightest object in the photograph
B、
B. the photograph contains many streaks that astronomers can identify as caused by noncelestial objects
C、
C. stars in the night sky do not appear to shift position relative to each other
D、
D. the spot could have been caused by an object that emitted a flash that lasted for only a fraction of the time that the camera shutter was open
E、
E. if the camera shutter had not been open for an extended period, it would have recorded substantially fewer celestial objects

答案:

D
0评分
1154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
3290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
3640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
1212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
2776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
1902浏览

[OG]

The primary purpose of the passage is to
为什么选E不选B
0评分
1221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
1287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
304565浏览

[Undefined]

Analytical!
请问may老师,这题该用什么思路来做?
0评分
311691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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