问答

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[Critical Reasoning]

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题目：

Which of the following most logically completes the argument?

By competing with rodents for seeds, black ants help control rodent populations that pose a public health risk. However, a very aggressive species of black ant, the Loma ant, which has recently invaded a certain region, has a venomous sting that is often fatal to humans. Therefore, the planned introduction into that region of ant flies, which prey on Loma ants, would benefit public health, since ________.

选项:

A、ant flies do not attack black ants other than Loma ants
B、Loma ants are less effective than many bird species in competing with rodents for seeds
C、certain other species of black ants are more effective than Loma ants in competing with rodents for seeds
D、the sting of Loma ants can also be fatal to rodents
E、some pesticides that could be used to control Loma ants are harmful to the environment

答案:

A
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[Sentence Correction]

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题目：

As the former chair of the planning board for 18 consecutive years and a board member for 28 years, Joan Philkill attended more than 400 meetings and reviewed more than 700 rezoning applications.

选项:

A、 As the former
B、 The former
C、 Former
D、 She was
E、 As the

答案:

E
5答疑

[Reading Comprehension]

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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 of 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
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[Sentence Correction]

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题目：

In the mid-1920s the Hawthorne Works of the Western Electric Company was the scene of an intensive series of experiments that would investigate changes in working conditions as to their effects on workers' performance.

选项:

A、that would investigate changes in working conditions as to their effects on workers' performance
B、investigating the effects that changes in working conditions would have on workers' performance
C、for investigating what the effects on workers' performance are that changes in working conditions would cause
D、that investigated changes in working conditions' effects on workers' performance
E、to investigate what the effects changes in working conditions would have on workers' performance

答案:

B
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[Sentence Correction]

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题目：

Rejecting the apprenticeship model of training social workers in philanthropic agencies, twentieth-century reformer Edith Abbott was convinced of social work education belonging in the university so that students could be offered a broad range of courses dealing with social issues.

选项:

A、 of social work education belonging in the university so that
B、 that social work education should be in the university, and that
C、 about the importance of social work education belonging in the university while
D、 that social work education belonged in the university, where
E、 of the necessity of social work education being in the university and

答案:

D
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[Critical Reasoning]

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题目：

Last August the XT chain of gasoline stations had a temporary sales promotion in effect In the promotion , any customer who made a purchase of ten or more gallons of gasoline was entitled to a tree car wash . For the month of August , XT experienced a ten percent increase in gasoline sales as compared to sales in August the previous year .so evidently the promotion was successful as a means of boosting sales.
 
In evaluating the argument , it would be most helpful to answer which of the following ?

选项:

A、In the areas in which XT's gasoline stations operate , how did total combined gasoline sales for all gasoline stations last August compare with sales for the previous August?
B、Was the money that XT earned from the increase in gasoline sales enough to offset the cost of providing tree car washes during the promotion?
C、Were there any customers who bought ten or more gallons at an XT gasoline station during the promotion who would have or more gallons at an XT gasoline in lower quantities , but more frequently ,if the promotion had not been in effect?
D、Did XT or any or its gasoline stations have to pay other businesses to provide the car washes that customers were offered in the promotion?
E、Are XT's gasoline sales in August usually significantly higher than one twelfth of XT's annual gasoline sales ?

答案:

A
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[Data Sufficiency]

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题目：

How many liters of apple juice were added to the cranberry juice in a certain container?
(1)   The amount of apple juice that was added was 3/2 the amount of cranberry juice in the container.
(2) There were 5 liters of cranberry juice in the container.

选项:

答案:

C
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[Critical Reasoning]

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题目：

Many people suffer an allergic reaction to certain sulfites, including those that are commonly added to wine as preservatives.  However, since there are several wine makers who add sulfites to none of the wines they produce, people who would like to drink wine but are allergic to sulfites can drink wines produced by these wine makers without risking an allergic reaction to sulfites. 
 

Which of the following is an assumption on which the argument depends?

选项:

A、These wine makers have been able to duplicate the preservative effect produced by adding sulfites by means that do not involve adding any potentially allergenic substances to their wine.
B、Not all forms of sulfite are equally likely to produce the allergic reactions.
C、Wine is the only beverage to which sulfites are commonly added.
D、Apart from sulfites, there are no substances commonly present in wine that give rise to an allergic reaction.
E、Sulfites are not naturally present in the wines produced by these wine makers in amounts large enough to produce an allergic reaction in someone who drinks these wines.

答案:

E
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[Critical Reasoning]

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题目：

In response to mounting pubic concern, an airplane manufacturer implemented a program with the well-publicized goal of reducing by half the total yearly amount of hazardous waste generated by its passenger-jet division.  When the program began in 1994, the division's hazardous waste output was 90 pounds per production worker; last year it was 40 pounds per production worker. Clearly, therefore, charges that the manufacturer's program has not met its goal are false.
 
Which of the following is an assumption on which the argument depends?

选项:

A、The amount of nonhazardous waste generated each year by the passenger-jet division has not increased significantly since 1994.
B、At least as many passenger jets were produced by the division last year as had been produced in 1994.
C、Since 1994, other divisions in the company have achieved reductions in hazardous waste output that are at least equal to that achieved in the passenger-jet division.
D、The average number of weekly hours per production worker in the passenger-jet division was not significantly greater last year than it was in 1994.
E、The number of production workers assigned to the passenger-jet division was not significantly less in 1994 than it was last year.

答案:

E
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[Critical Reasoning]

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题目：

When storing Renaissance oil paintings, museums conform to standards that call for careful control of the surrounding temperature and humidity, with variations confined within narrow margins.  Maintaining this environment is very costly, and recent research shows that even old oil paint is unaffected by wide fluctuations in temperature and humidity.  Therefore, museums could relax their standards and save money without endangering their Renaissance oil paintings.
 
Which of the following is an assumption on which the argument depends?

选项:

A、Renaissance paintings were created in conditions involving far greater fluctuations in temperature and humidity than those permitted by current standards.
B、Under the current standards that museums use when storing Renaissance oil paintings, those paintings do not deteriorate at all.
C、Museum collections typically do not contain items that are more likely to be vulnerable to fluctuations in temperature and humidity than Renaissance oil paintings.
D、None of the materials in Renaissance oil paintings other than the paint are vulnerable enough to relatively wide fluctuations in temperature and humidity to cause damage to the paintings.
E、Most Renaissance oil paintings are stored in museums located in regions near the regions where the paintings were created.

答案:

D
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448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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1503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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1688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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635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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1464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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1045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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692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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704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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167445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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174559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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