问答

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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
5答疑

[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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[Critical Reasoning]

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题目：

Whales originated in the freshwater lakes and rivers of ancient Asia about sixty million years ago.  Not until about ten million years later did species of whales develop specialized kidneys enabling them to drink salt water.  Although fossil evidence shows that some early whale species that lacked such kidneys sometimes swam in the Earth's saltwater oceans, these species must have had to return frequently to freshwater rivers to drink.
 
Which of the following is most strongly supported by the information given?

选项:

A、Fossils of whale species dating from between sixty million and fifty million years ago will not be found on continents that were at the time separated from ancient Asia by wide expanses of ocean.
B、Among whale fossils that date from later than about fifty million years ago, none are fossils of whale species that drank only fresh water.
C、Fossils of whale species that drank fresh water will not be found in close proximity to fossils of whale species that drank salt water.
D、The earliest whales that drank salt water differed from fresh-water-drinking whales only in their possession of specialized kidneys.
E、Between sixty million and fifty million years ago, the freshwater lakes and rivers in which whales originated were gradually invaded by salt water.

答案:

A
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[Sentence Correction]

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题目：

Although energy prices have tripled in the United States over the last two years, research indicates few people to have significantly reduced the amount of driving they do, nor are they making fuel efficiency a priority when shopping for cars.

选项:

A、few people to have significantly reduced the amount of driving they do, nor are they making
B、few people having significantly reduced the amount of driving they do or made
C、that there are few people who have significantly reduced the amount of driving they do, nor having made
D、that few people have significantly reduced the amount of driving they do and are not making
E、that few people have significantly reduced the amount of driving they do or made

答案:

E
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[Sentence Correction]

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题目：

Plants are more efficient at acquiring carbon than are fungi, in the form of carbon dioxide, and converting it to energy-rich sugars.

选项:

A、Plants are more efficient at acquiring carbon than are fungi
B、Plants are more efficient at acquiring carbon than fungi
C、Plants are more efficient than fungi at acquiring carbon
D、Plants, more efficient than fungi at acquiring carbon
E、Plants acquire carbon more efficiently than fungi

答案:

C
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[Critical Reasoning]

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题目：

Pharmacists recently conducted a study with respect to the reasons their customers purchased eye drops to soothe eye dryness. Dry eyes were more frequently experienced by customers who wore contact lenses than by customers who did not wear contact lenses. The pharmacists concluded that wearing contact lenses, by itself, can cause contact wearers to have dry eyes.
Which one of the following statements, if true, most seriously undermines the pharmacists’ conclusion?

选项:

A、A. An inherited condition can cause both weak eyesight and dry eyes.
B、B. Physical exertion causes dry eyes in many people who wear contact lenses.
C、C. Most people who have dry eyes do not wear contact lenses.
D、D. Most people who wear contact lenses do not have dry eyes.
E、E. Both weak vision and dry eyes cause headaches.

答案:

A
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[Sentence Correction]

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题目：

Rivaling the pyramids of Egypt or even the ancient cities of the Maya as an achievement, the army of terra-cotta warriors created to protect Qin Shi Huang, China's first emperor, in his afterlife is more than 2,000 years old and took 700,000 artisans more than 36 years to complete.

选项:

A、the army of terra-cotta warriors created to protect Qin Shi Huang, China's first emperor, in his afterlife is more than 2,000 years old and took 700,000 artisans more than 36 years to complete
B、Qin Shi Huang, China's first emperor, was protected in his afterlife by an army of terra-cotta warriors that was created more than 2,000 years ago by 700,000 artisans who took more than 36 years to complete it
C、it took 700,000 artisans more than 36 years to create an army of terra-cotta warriors more than 2,000 years ago that would protect Qin Shi Huang, China's first emperor, in his afterlife
D、more than 2,000 years ago, 700,000 artisans worked more than 36 years to create an army of terra-cotta warriors to protect Qin Shi Huang, China's first emperor, in his afterlife
E、more than 36 years were needed to complete the army of terra-cotta warriors that 700,000 artisans created 2,000 years ago to protect Qin Shi Huang, China's first emperor, in his afterlife

答案:

A
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364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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314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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687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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591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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[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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408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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87923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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[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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96966浏览

[Undefined]

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Analytical!
请问老师，这道题为什么second part是”evidence”? 还有、不确定First part到底是background info还是premise?
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