问答

1答疑

[Sentence Correction]

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题目：

Faced with an estimated $2 billion budget gap, the city's mayor proposed a nearly 17 percent reduction in the amount allocated the previous year to maintain the city's major cultural institutions and to subsidize hundreds of local arts groups.

选项:

A、
A. proposed a nearly 17 percent reduction in the amount allocated the previous year to maintain the city's major cultural institutions and to subsidize
B、
B. proposed a reduction from the previous year of nearly 17 percent in the amount it was allocating to maintain the city's major cultural institutions and for subsidizing
C、
C. proposed to reduce, by nearly 17 percent, the amount from the previous year that was allocated for the maintenance of the city's major cultural institutions and to subsidize
D、
D. has proposed a reduction from the previous year of nearly 17 percent of the amount it was allocating for maintaining the city's major cultural institutions, and to subsidize
E、
E. was proposing that the amount they were allocating be reduced by nearly 17 percent from the previous year for maintaining the city's major cultural institutions and for the subsidization

答案:

A
1答疑

[Data Sufficiency]

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题目：

How many members of a certain legislature voted against the measure to raise their salaries?
  1. of the members of the legislature did not vote on the measure.
  2. If 5 additional members of the legislature had voted against the measure, then the fraction of members of the legislature voting against the measure would have been .

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:

E
1答疑

[Critical Reasoning]

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题目：

Pharmaceutical companies spend more than ever on research and development; yet the number of new drugs patented each year has dropped since 1963. At the same time, profits—at constant 1963 dollars—for the industry as a whole have been steadily increasing.

Which of the following, if true, is the single factor most likely to explain, at least in part, the three trends mentioned above for money spent, drugs patented, and profits made?

选项:

A、Government regulations concerning testing requirements for novel drugs have become steadily more stringent.
B、Research competition among pharmaceutical companies has steadily intensified as a result of a general narrowing of research targets to drugs for which there is a large market.
C、Many pharmaceutical companies have entered into collaborative projects with leading universities, while others have hired faculty members away from universities by offering very generous salaries.
D、The number of cases in which one company’s researchers duplicated work done by another company’s researchers has steadily grown.
E、The advertising budgets of the major pharmaceutical companies have grown at a higher rate than their profits have.

答案:

B
1答疑

[Critical Reasoning]

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题目：

Last year a record number of new manufacturing jobs were created. Will this year bring another record? Well, any new manufacturing job is created either within an existing company or by the start-up of a new company. Within existing firms, new jobs have been created this year at well below last year's record pace. At the same time, there is considerable evidence that the number of new companies starting up will be no higher this year than it was last year and there is no reason to think that the new companies starting up this year will create more jobs per company than did last year's start-ups. So clearly, the number of new jobs created this year will fall short of last year's record.

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

选项:

A、The first is a claim that the argument challenges; the second is an explicit assumption on which that challenge is based.
B、The first is a claim that the argument challenges; the second is a judgment advanced in support of the main conclusion of the argument.
C、The first provides evidence in support of the main conclusion of the argument; the second is an objection that has been raised against that main conclusion.
D、The first provides evidence in support of the main conclusion of the argument; the second is a judgment advanced in support of that main conclusion.
E、The first and the second are each claims that have been advanced in support of a position that the argument opposes.

答案:

D
1答疑

[Data Sufficiency]

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题目：

If R = P /Q , is R  ≤  P  ?
(1) P > 50
(2)  0 < Q ≤ 20
祮

选项:

答案:

E
1答疑

[Critical Reasoning]

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题目：

One might expect that within a particular species, any individuals that managed to slow down the aging process would leave more offspring. Natural selection should therefore favor extreme longevity—but this does not seem to be the case. A possible explanation is that aging is a product of the inevitable wear and tear of living, similar to how household appliances generally accumulate faults that lead to their eventual demise. However, most researchers do not find this analogy satisfactory as an explanation.

Which of the following would, if true, provide the strongest explanation for the researchers’ reaction?

选项:

A、Some organisms are capable of living much longer than other organisms.
B、Some organisms reproduce very quickly despite having short lifespans.
C、There are several ways of defining “extreme longevity,” and according to some definitions it occurs frequently.
D、Organisms are capable of maintenance and self-repair and can remedy much of the damage that they accumulate.
E、Some organisms generate much more wear and tear on their bodies than others.

答案:

D
1答疑

[Reading Comprehension]

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文章：

The professionalization of the study of history in the second half of the nineteenth century, including history's transformation from a literary genre to a scientific discipline, had important consequences not only for historians' perceptions of women but also for women as historians.  The disappearance of women as objects of historical studies during this period has elements of irony to it.  On the one hand, in writing about women, earlier historians had relied not on firsthand sources but rather on secondary sources; the shift to more rigorous research methods required that secondary sources be disregarded.  On the other hand, the development of archival research and the critical editing of collections of documents began to reveal significant new historical evidence concerning women, yet this evidence was perceived as substantially irrelevant:  historians saw political history as the general framework for historical writing.  Because women were seen as belonging to the private rather than to the public sphere, the discovery of documents about them, or by them, did not, by itself, produce history acknowledging the contributions of women. In addition, genres such as biography and memoir, those forms of "particular history" that women had traditionally authored, fell into disrepute.  The dividing line between "particular history" and general history was redefined in stronger terms, widening the gulf between amateur and professional practices of historical research.

题目：

According to the passage, the development of archival research and the critical editing of collections of documents had which of the following effects?

选项:

A、Historians increasingly acknowledged women's contributions to history.
B、Historians began to debate whether secondary sources could provide reliable information.
C、Historians began to apply less rigorous scientific research criteria to the study of women's history.
D、More evidence concerning women became available to historical researchers.
E、Women began to study history as professional historians.

答案:

D
1答疑

[Reading Comprehension]

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文章：

Global strategies to control infectious disease have historically included the erection of barriers to international travel and immigration. Keeping people with infectious diseases outside national borders has reemerged as an important public health policy in the human immunodeficiency virus (HIV) epidemic. Between 29 and 50 countries are reported to have introduced border restrictions on HIV-positive foreigners, usually those planning an extended stay in the country, such as students, workers, or seamen.
Travel restrictions have been established primarily by countries in the western Pacific and Mediterranean regions, where HIV seroprevalence is relatively low. However, the country with the broadest policy of testing and excluding foreigners is the United States. From December 1, 1987, when HIV infection was first classified in the United States as a contagious disease, through September 30, 1989, more than 3 million people seeking permanent residence in this country were tested for HIV antibodies. The U.S. policy has been sharply criticized by national and international organizations as being contrary to public health goals and human-rights principles. Many of these organizations are boycotting international meetings in the United States that are vital for the study of prevention, education, and treatment of HIV infection.
The Immigration and Nationality Act requires the Public Health Service to list "dangerous contagious diseases" for which aliens can be excluded from the United States. By 1987 there were seven designated diseases—five of them sexually transmitted (chancroid, gonorrhea, granuloma inguinale, lymphog-ranuloma venereum, and infectious syphilis) and two non-venereal (active tuberculosis and infectious leprosy). On June 8, 1987, in response to a Congressional direction in the Helms Amendment, the Public Health Service added HIV infection to the list of dangerous contagious diseases.
A just and efficacious travel and immigration policy would not exclude people because of their serologic status unless they posed a danger to the community through casual transmission. U.S. regulations should list only active tuberculosis as a contagious infectious disease. We support well-funded programs to protect the health of travelers infected with HIV through appropriate immunizations and prophylactic treatment and to reduce behaviors that may transmit infection.
We recognize that treating patients infected with HIV who immigrate to the United States will incur costs for the public sector. It is inequitable, however, to use cost as a reason to exclude people infected with HIV, for there are no similar exclusionary policies for those with other costly chronic diseases, such as heart disease or cancer.
Rather than arbitrarily restrict the movement of a subgroup of infected people, we must dedicate ourselves to the principles of justice, scientific cooperation, and a global response to the HIV pandemic.

题目：

According to the passage, countries in the western Pacific have

选项:

A、A. a very high frequency of HIV-positive immigrants and have a greater reason to be concerned over this issue than other countries.
B、B. opposed efforts on the part of Mediterranean states to establish travel restrictions on HIV-positive residents.
C、C. a low HIV seroprevalence and, in tandem with Mediterranean regions, have established travel restrictions on HIV-positive foreigners.
D、D. continued to obstruct efforts to unify policy concerning immigrant screening.
E、E. joined with the United States in sharing information about HIV-positive individuals.

答案:

C
1答疑

[Critical Reasoning]

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题目：

Many large department stores in Montalia now provide shopping carts for their customers.  Since customers using shopping carts tend to buy more than those without shopping carts, most of these stores are experiencing strong sales growth, while most other department stores are not.  Therefore, in order to boost sales, managers of Jerrod's, Montalia's premier department store, are planning to purchase shopping carts and make them available to the store's customers next month.
 
Which of the following, if true, casts most doubt whether the managers' plan, if implemented, will achieve its goal?

选项:

A、Since most customers associate shopping carts with low-quality discount stores, Jerrod's high-quality image would likely suffer if shopping carts were introduced.
B、Because the unemployment rate has declined to very low levels, Jerrod's now has to pay significantly higher wages in order to retain its staff.
C、A number of department stores that did not make shopping carts available to their customers have had to close recently due to falling profits.
D、Shopping carts are not very expensive, but they generally need to be replaced every few years.
E、Stores that make shopping carts available to their customers usually have to hire people to retrieve the carts from parking areas.

答案:

A
1答疑

[Critical Reasoning]

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题目：

In the past, most children who went sledding in the winter snow in Verland used wooden sleds with runners and steering bars.  Ten years ago, smooth plastic sleds became popular; they go faster than wooden sleds but are harder to steer and slow.  The concern that plastic sleds are more dangerous is clearly borne out by the fact that the number of children injured while sledding was much higher last winter than it was ten years ago.
 
Which of the following, if true in Verland, most seriously undermines the force of the evidence cited?

选项:

A、A few children still use traditional wooden sleds.
B、Very few children wear any kind of protective gear, such as helmets, while sledding.
C、Plastic sleds can be used in a much wider variety of snow conditions than wooden sleds can.
D、Most sledding injuries occur when a sled collides with a tree, a rock, or, another sled.
E、Because the traditional wooden sled can carry more than one rider, an accident involving a wooden sled can result in several children being injured.

答案:

C
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1157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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3302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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3646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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1214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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2786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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1903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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1224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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1289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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305163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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312289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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