问答

1答疑

[Critical Reasoning]

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题目：

When a polygraph test is judged inconclusive, this is no reflection on the examinee. Rather, such a judgment means that the test has failed to show whether the examinee was truthful or untruthful. Nevertheless, employers will sometimes refuse to hire a job applicant because of an inconclusive polygraph test result.

Which of the following conclusions can most properly be drawn from the information above?

选项:

A、Most examinees with inconclusive polygraph test results are in fact untruthful.
B、Polygraph tests should not be used by employers in the consideration of job applicants.
C、An inconclusive polygraph test result is sometimes unfairly held against the examinee.
D、A polygraph test indicating that an examinee is untruthful can sometimes be mistaken.
E、Some employers have refused to consider the results of polygraph tests when evaluating job applicants.

答案:

C
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[Sentence Correction]

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题目：

Broccoli thrives in moderate to cool climates and propagated by seeds, either sown directly in the field or in plant beds designed for producing transplants.

选项:

A、 propagated by seeds, either sown directly in the field or in plant beds designed for producing
B、 propagated by seeds, sown either directly in the field or sown in plant beds designed so as to produce
C、 is propagated by seeds either sown directly in the field or in plant beds designed so that they produce
D、 is propagated by seeds sown either directly in the field or in plant beds designed to produce
E、 is propagated by seeds, sown either directly in the field or sown in plant beds designed for producing

答案:

D
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[Problem Solving]

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题目：

For all real numbers x, y, and z, let . For what value of a is equal to 

选项:

A、A–1
B、B0
C、C1
D、D5
E、EAll values of a.

答案:

B
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[Critical Reasoning]

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文章：

State spokesperson：Many businesspeople who have not been to our state believe that we have an inadequate road system.Those people are mistaken, as is obvious from the fact that in each of the past six years, our state has spent more money per mile on road improvements than any other state.

题目：

Which of the following, if true, most seriously undermines the reasoning in the spokesperson's argument?

选项:

A、In the spokesperson's state, spending on road improvements has been increasing more slowly over the past six years than it has in several other states. Adequacy of a state's road system is generally less important to a businessperson considering doing business there than is the availability of qualified employees.
B、Over the past six years, numerous businesses have left the spokesperson's state, but about as many businesses have moved into the state.
C、In general, the number of miles of road in a state's road system depends on both the area and the population of the state.
D、Only states with seriously inadequate road systems need to spend large amounts of money on road improvements.

答案:

E
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[Sentence Correction]

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题目：

Egyptians are credited as having pioneered embalming methods as long ago as 2650 BC.

选项:

A、as havingwith having
B、to have
C、as the ones who
D、for being the ones who

答案:

B
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[Critical Reasoning]

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题目：

In the past, every ten-percentage-point increase in cigarette prices in the country of Coponia has decreased per capita sales of cigarettes by four percent.  Coponia is about to raise taxes on cigarettes by 9 cents per pack.  The average price of cigarettes in Coponia is and has been for more than a year 90 cents per pack.  So the tax hike stands an excellent chance of reducing per capita sales of cigarettes by four percent.
 
Which of the following is an assumption on which the argument depends?

选项:

A、Tobacco companies are unlikely to reduce their profit per pack of cigarettes to avoid an increase in the cost per pack to consumers in Coponia.
B、Previous increases in cigarette prices in Coponia have generally been due to increases in taxes on cigarettes.
C、Any decrease in per capita sales of cigarettes in Coponia will result mainly from an increase in the number of people who quit smoking entirely.
D、At present, the price of a pack of cigarettes in Coponia includes taxes that amount to less than ten percent of the total selling price.
E、The number of people in Coponia who smoke cigarettes has remained relatively constant for the past several years.

答案:

A
1答疑

[Reading Comprehension]

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文章：

The United States government has a long-standing policy of using federal funds to keep small business viable.  The Small Business Act of 1953 authorized the Small Business Administration (SBA) to enter into contracts with government agencies having procurement powers and to arrange for fulfillment of these contracts by awarding subcontracts to small businesses.  In the mid-1960's, during the war on poverty years, Congress hoped to encourage minority entrepreneurs by directing such funding to minority businesses.  At first this funding was directed toward minority entrepreneurs with very low incomes.  A 1967 amendment to the Economic Opportunity Act directed the SBA to pay special attention to minority-owned businesses located in urban or rural areas characterized by high proportions of unemployed or low-income individuals.  Since then, the answer given to the fundamental question of who the recipients should be--the most economically disadvantaged or those with the best prospects for business success--has changed, and the social goals of the programs have shifted, resulting in policy changes.

 

The first shift occurred during the early 1970's.  While the goal of assisting the economically disadvantaged entrepreneur remained, a new goal emerged:  to remedy the effects of past discrimination.  In fact, in 1970 the SBA explicitly stated that their main goal was to increase the number of minority-owned businesses.  At the time, minorities constituted seventeen percent of the nation's population, but only four percent of the nation's self-employed.  This ownership gap was held to be the result of past discrimination.  Increasing the number of minority-owned firms was seen as a way to remedy this problem.  In that context, providing funding to minority entrepreneurs in middle- and high-income brackets seemed justified.

 

In the late 1970's, the goals of minority-business funding programs shifted again.  At the Minority Business Development Agency, for example, the goal of increasing numbers of minority-owned firms was supplanted by the goal of creating and assisting more minority-owned substantive firms with future growth potential.  Assisting manufacturers or wholesalers became far more important than assisting small service businesses.  Minority-business funding programs were now justified as instruments for economic development, particularly for creating jobs in minority communities of high unemployment.

题目：

It can be inferred that the "ownership gap" (see highlighted text) would be narrowed if which of the following were to occur?

选项:

A、(A) Minority entrepreneurs received a percentage of government contracts equal to that received by nonminority entrepreneurs.
B、(B) Middle- and high-income minority entrepreneurs gave more assistance to their low-income counterparts in the business community.
C、(C) Minority entrepreneurs hired a percentage of minority employees equal to the percentage of minority residents in their own communities.
D、(D) The percentage of self-employed minority persons rose to more than ten percent of all self-employed persons.
E、(E) Seventeen percent of all persons employed in small businesses were self-employed. 

答案:

D
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[Problem Solving]

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题目：

At a certain school, the ratio of the number of second graders to the number of fourth graders is 8 to 5, and the ratio of the number of first graders to the number of second graders is 3 to 4. If the ratio of the number of third graders to the number of fourth graders is 3 to 2, what is the ratio of the number of first graders to the number of third graders?

选项:

A、16 to 15
B、9 to 5
C、5 to 16
D、5 to 4
E、4 to 5

答案:

E
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题目：

Kudzu, an Asian vine that has grown rampantly in the southern United States since introducing it in the 1920s to thwart soil erosion, has overrun many houses and countless acres of roadside.

选项:

答案:

C
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[Reading Comprehension]

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文章：

Line Micro-wear patterns found on the teeth of long-
extinct specimens of the primate species
australopithecine may provide evidence about their
diets. For example, on the basis of tooth micro-wear
(5) patterns, Walker dismisses Jolly’s hypothesis that
australopithecines ate hard seeds. He also disputes
Szalay’s suggestion that the heavy enamel of
australopithecine teeth is an adaptation to bone
crunching, since both seed cracking and bone
(10) crunching produce distinctive micro-wear
characteristics on teeth. His conclusion that
australopithecines were frugivores (fruit eaters) is
based upon his observation that the tooth micro-
wear characteristics of east African
(15) australopithecine specimens are indistinguishable
from those of chimpanzees and orangutans, which
are commonly assumed to be frugivorous primates.
However, research on the diets of
contemporary primates suggests that micro-wear
(20) studies may have limited utility in determining the
foods that are actually eaten. For example, insect
eating, which can cause distinct micro-wear
patterns, would not cause much tooth abrasion in
modern baboons, who eat only soft-bodied insects
(25) rather than hard-bodied insects. In addition, the
diets of current omnivorous primates vary
considerably depending on the environments that
different groups within a primate species inhabit; if
australopithecines were omnivores too, we might
(30) expect to find considerable population variation in
their tooth micro-wear patterns. Thus, Walker’s
description of possible australopithecine diets may
need to be expanded to include a much more
diverse diet.

题目：

The passage suggests that which of the following would be true of studies of tooth micro-wear patterns conducted on modern baboons?

选项:

答案:

D
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1299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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3677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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4046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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1346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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3021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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2088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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1340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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1414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
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333777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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340903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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