问答

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[Critical Reasoning]

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题目：

Proposed new safety rules for the Beach City airport would lengthen considerably the minimum time between takeoffs from the airport. In consequence, the airport would be able to accommodate 10 percent fewer flights than currently use the airport daily. The city’s operating budget depends heavily on taxes generated by tourist spending, and most of the tourists come by plane. Therefore, the proposed new safety rules, if adopted, will reduce the revenue available for the operating budget.

The argument depends on assuming which of the following?

选项:

A、There are no periods of the day during which the interval between flights taking off from the airport is significantly greater than the currently allowed minimum.
B、Few, if any, of the tourists who use the Beach City airport do so when their main destination is a neighboring community and not Beach City itself.
C、If the proposed safety rules are adopted, the reduction in tourist numbers will not result mainly from a reduction in the number of tourists who spend relatively little in Beach City.
D、Increasing the minimum time between takeoffs is the only way to achieve necessary safety improvements without a large expenditure by the city government on airport enhancements.
E、The response to the adoption of the new safety rules would not include an increase in the number of passengers per flight.

答案:

E
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[Sentence Correction]

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题目：

Many financial experts believe that policy makers at the Federal Reserve, now viewing the economy as balanced between moderate growth and low inflation, are almost certain to leave interest rates unchanged for the foreseeable future.

选项:

A、Reserve, now viewing the economy as balanced between moderate growth and low inflation, are
B、Reserve, now viewing the economy to be balanced between that of moderate growth and low inflation and are
C、Reserve who, now viewing the economy as balanced between moderate growth and low inflation, are
D、Reserve, who now view the economy to be balanced between that of moderate growth and low inflation, will be
E、Reserve, which now views the economy to be balanced between moderate growth and low inflation, is

答案:

A
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[Sentence Correction]

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题目：

The Environmental Protection Agency frequently puts mandatory controls on toxic substances that present as little risk as one in a million chances to cause cancer.

选项:

A、as little risk as one in a million chances to cause
B、as little risk as one chance in a million of causing
C、as little risk as one chance in a million that it will cause
D、a risk as little as one chance in a million for causing
E、a risk as little as one chance in a million for it to cause

答案:

B
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[Critical Reasoning]

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题目：

First-time computer buyers buying PXC home computers typically buy models that cost much less and have a smaller profit margin per computer than do PXC computers bought by people replacing their computers with more powerful models.  Last year PXC's profits from computer sales were substantially higher than the previous year, although about the same number of PXC computers were sold and the prices and profit margins for each computer model that PXC sells remained unchanged.
 
If the statements above are true, which of the following is most strongly supported by them?

选项:

A、PXC's competitors raised the prices on their computers last year, making PXC computers more attractive to first-time computer buyers.
B、The number of people buying PXC computers who also bought PXC computer-related products, such as printers, was larger last year than the previous year.
C、Among computer buyers who bought a PXC computer to replace their existing computer, the proportion who were replacing a computer made by a competitor of PXC was greater last year than the previous year.
D、The proportion of PXC computers bought by first-time computer buyers was smaller last year than the previous year.
E、PXC's production costs for its computers were lower last year than they had been the previous year.

答案:

D
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[Sentence Correction]

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题目：

Unlike the original National Museum of Science and Technology in Italy, where the models are encased in glass or operated only by staff members, the Virtual Leonardo Project, an online version of the museum, encourages visitors to "touch" each exhibit, which thereby activates the animated functions of the piece.

选项:

A、exhibit, which thereby activates
B、exhibit, in turn an activation of
C、exhibit, and it will activate
D、exhibit and thereby activate
E、exhibit which, as a result, activates

答案:

D
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[Critical Reasoning]

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题目：

Although the school would receive financial benefits if it had soft drink vending machines in the cafeteria, we should not allow them. Allowing soft drink machines there would not be in our students’ interest. If our students start drinking more soft drinks, they will be less healthy.

The argument depends on which of the following?

选项:

A、If the soft drink vending machines were placed in the cafeteria, students would consume more soft drinks as a result.
B、The amount of soft drinks that most students at the school currently drink is not detrimental to their health.
C、Students are apt to be healthier if they do not drink soft drinks at all than if they just drink small amounts occasionally.
D、Students will not simply bring soft drinks from home if the soft drink vending machines are not placed in the cafeteria.
E、The school’s primary concern should be to promote good health among its students.

答案:

A
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[Critical Reasoning]

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题目：

Petrochemical industry officials have said that the extreme pressure exerted on plant managers during the last five years to improve profits by cutting costs has done nothing to impair the industry’s ability to operate safely. However, environmentalists contend that the recent rash of serious oil spills and accidents at petrochemical plants is traceable to cost-cutting measures.

Which of the following, if true, would provide the strongest support for the position held by industry officials?

选项:

A、The petrochemical industry benefits if accidents do not occur, since accidents involve risk of employee injury as well as loss of equipment and product.
B、Petrochemical industry unions recently demanded that additional money be spent on safety and environmental protection measures, but the unions readily abandoned those demands in exchange for job security.
C、Despite major cutbacks in most other areas of operation, the petrochemical industry has devoted more of its resources to environmental and safety measures in the last five years than in the preceding five years.
D、There is evidence that the most damaging of the recent oil spills would have been prevented had cost-cutting measures not been instituted.
E、Both the large fines and the adverse publicity generated by the most recent oil spill have prompted the petrochemical industry to increase the resources devoted to oil-spill prevention.

答案:

C
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[Sentence Correction]

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题目：

Analyzing campaign expenditures, the media has had as a focus the high costs and low ethics of campaign finance, but they have generally overlooked the cost of actually administering elections, which includes facilities, transport, printing, staffing, and technology.

选项:

A、Analyzing campaign expenditures, the media has had as a focus
B、Analyses of campaign expenditures by the media has been focus on
C、In analyzing campaign expenditures, the media have focused on
D、Media analyses of campaign expenditures have had as a focus
E、In their analysis of campaign expenditures, the media has been focusing on

答案:

C
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[Reading Comprehension]

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文章：

    Linda Kerber argued in the mid-1980's that after the American Revolution (1775-1783), an ideology of "republican motherhood" resulted in a surge of educational opportunities for women in the United States. Kerber maintained that the leaders of the new nation wanted women to be educated in order to raise politically virtuous sons. A virtuous citizenry was considered essential to the success of the country's republican form of government; virtue was to be instilled not only by churches and schools, but by families, where the mother's role was crucial. Thus, according to Kerber, motherhood became pivotal to the fate of the republic, providing justification for an unprecedented attention to female education.

    Introduction of the republican motherhood thesis dramatically changed historiography. Prior to Kerber's work, educational historians barely mentioned women and girls; Thomas Woody's 1929 work is the notable exception. Examining newspaper advertisements for academies. Woody found that educational opportunities increased for both girls and boys around 1750. pointing to "An Essay on Woman" (1753) as reflecting a shirt in view. Woody also claimed that practical education for females had many advocates before the Revolution, Woody's evidence challenges the notion that the Revgolution changed attiludes regarding female education, although it may have accelerated earlier trends. Historians' reliance on Kerber's "republican mother hood" thesis may have obscured the presence of these trends, making it difficult to determine to what extent the Revolution really changed women's lives.

题目：

The passage suggests that, with regard to the history of women's education in the United States, Kerber's work differs from Woody's primarily concerning which of the following?

选项:

A、The extent to which women were interested in pursuing educational opportunities in the eighteenth century
B、The extent of the support for educa-tional opportunities for girls prior to the American Revolution.
C、The extent of public resistance to edu-cational opportunities for women after the American Revolution.
D、Whether attitudes toward women's educational opportunities changed during the eighteenth century.
E、Whether women needed to be educated in order to contribute to the success of a republican form of government

答案:

B
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题目：

From studies of the bony house of the brain, which is the cranium, located in the back of the skull, come what scientists know about dinosaur brains.

选项:

A、From studies of the bony house of the brain, which is the cranium, located in the back of the skull, come what scientists know about dinosaur brains.
B、The knowledge that scientists know about dinosaur brains comes from studies of the bony house of the brain, located in the back of the skull, that is, the cranium.
C、The knowledge of dinosaur brains that scientists have come from studies of the bony house of the brain, which is located in the back of the skull and is called the cranium.
D、What scientists know about dinosaur brains comes from studies of the cranium, the bony house of the brain located in the back of the skull.
E、Located in the back of the skull is the cranium, the bony house of the brain, and it is from studies of this that scientists know what they know about dinosaur brains.

答案:

D
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[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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1472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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[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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[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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1444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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[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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680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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[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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[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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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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