[Problem Solving]
试题详情
题目：
[2(4-1)2]/2(3-2)
选项:
A、28
B、27
C、26
D、25
E、24
答案:
A
问答
2答疑
2答疑
[Critical Reasoning]
试题详情
题目：
TrueSave is a mail-order company that ships electronic products from its warehouses to customers worldwide. The company's shipping manager is proposing that customer orders be packed with newer, more expensive packing materials that virtually eliminate damage during shipping. The manager argues that overall costs would essentially remain unaffected, since the extra cost of the new packing materials roughly equals the current cost of replacing products returned by customers because they arrived in damaged condition.
Which of the following would it be most important to ascertain in determining whether implementing the shipping manager's proposal would have the argued-for effect on costs?
选项:
A、Whether the products shipped by TrueSave are more vulnerable to incurring damage during shipping than are typical electronic products
B、Whether electronic products are damaged more frequently in transit than are most other products shipped by mail-order companies
C、Whether a sizable proportion of returned items are returned because of damage already present when those items were packed for shipping
D、Whether there are cases in which customers blame themselves for product damage that, though present on arrival of the product, is not discovered until later
E、Whether TrueSave continually monitors the performance of the shipping companies it uses to ship products to its customers
答案:
C
2答疑
[Critical Reasoning]
试题详情
题目：
From 1980 to 1989, total consumption of fish in the country of Jurania increased by 4.5 percent, and total consumption of poultry products there increased by 9.0 percent. During the same period, the population of Jurania increased by 6 percent, in part due to immigration to Jurania from other countries in the region.
选项:
A、During the 1980's in Jurania, profits of wholesale distributors of poultry products increased at a greater rate than did profits of wholesale distributors of fish.
B、For people who immigrated to Jurania during the 1980's, fish was less likely to be a major part of their diet than was poultry.
C、In 1989 Juranians consumed twice as much poultry as fish.
D、For a significant proportion of Jurania's population, both fish and poultry products were a regular part of their diet during the 1980's.
E、Per capita consumption of fish in Jurania was lower in 1989 than in 1980.
答案:
E
2答疑
[Data Sufficiency]
试题详情
题目：
In a survey of 200 college graduates, 30 percent said they had received student loans during their college careers, and 40 percent said they had received scholarships. What percent of those surveyed said that they had received neither student loans nor scholarships during their college careers?
(1) 25 percent of those surveyed said that they had received scholarships but no loans.
(2) 50 percent of those surveyed who said that they had received loans also said that they had received scholarships.
选项:
答案:
D
2答疑
[Critical Reasoning]
试题详情
题目：
Highway Official: When resurfacing our concrete bridges, we should use electrically conductive concrete (ECC) rather than standard concrete. In the winter, ECC can be heated by passing an electric current through it, thereby preventing ice buildup. The cost of the electricity needed is substantially lower than the cost of the de-icing salt we currently use.
Taxpayer: But construction costs for ECC are much higher than for standard concrete, so your proposal is probably not justifiable on economic grounds.
Which of the following, if true, could best be used to support the highway official's proposal in the face of the taxpayer's objection?
选项:
A、The use of de-icing salt causes corrosion of the reinforcing steel in concrete bridge decks and damage to the concrete itself, thereby considerably shortening the useful life of concrete bridges.
B、Severe icing conditions can cause power outages and slow down the work of emergency crews trying to get power restored.
C、In weather conditions conducive to icing, ice generally forms on the concrete surfaces of bridges well before it forms on parts of the roadway that go over solid ground.
D、Aside from its potential use for de-icing bridges, ECC might also be an effective means of keeping other concrete structures such as parking garages and airport runways ice free.
E、If ECC were to be used for a bridge surface, the electric current would be turned on only at times at which ice was likely to form.
答案:
A
2答疑
[Data Sufficiency]
试题详情
题目：
What is the volume of the cube above?
(1) The surface area of the cube is 600 square inches.
(2) The length of diagonal AB is 
inches.
inches.选项:
答案:
D
2答疑
[Reading Comprehension]
试题详情
文章：
| Line | Two works published in 1984 demonstrate |
| contrasting approaches to writing the history of | |
| United States women. Buel and Buel’s biography | |
| of Mary Fish (1736–1818) makes little effort to | |
| (5) | place her story in the context of recent |
| historiography on women. Lebsock, meanwhile, | |
| attempts not only to write the history of women in | |
| one southern community, but also to redirect two | |
| decades of historiographical debate as to | |
| (10) | whether women gained or lost status in the |
| nineteenth century as compared with the | |
| eighteenth century. Although both books offer the | |
| reader the opportunity to assess this controversy | |
| regarding women’s status, only Lebsock’s deals with | |
| (15) | it directly. She examines several different aspects |
| of women’s status, helping to refine and resolve the | |
| issues. She concludes that while | |
| women gained autonomy in some areas, | |
| especially in the private sphere, they lost it in | |
| (20) | many aspects of the economic sphere. More |
| importantly, she shows that the debate itself | |
| depends on frame of reference: in many respects, | |
| women lost power in relation to men, for example, | |
| as certain jobs (delivering babies, supervising | |
| (25) | schools) were taken over by men. Yet women also |
| gained power in comparison with their previous | |
| status, owning a higher proportion of real estate, | |
| for example. In contrast, Buel and Buel’s | |
| biography provides ample raw material for | |
| (30) | questioning the myth, fostered by some |
| historians, of a colonial golden age in the | |
| eighteenth century but does not give the reader | |
| much guidance in analyzing the controversy over | |
| women’s status. |
题目：
According to the passage, Lebsock’s work differs from Buel and Buel’s work in that Lebsock’s work
选项:
A、uses a large number of primary sources
B、ignores issues of women’s legal status
C、refuses to take a position on women’s status in the eighteenth century
D、addresses larger historiographical issues
E、fails to provide sufficient material to support its claims
答案:
D
2答疑
[Sentence Correction]
试题详情
题目：
Doctors generally agree that such factors as cigarette smoking, eating rich foods high in fats, and alcohol consumption not only do damage by themselves but also aggravate genetic predispositions toward certain diseases.
选项:
A、not only do damage by themselves but also aggravatedo damage by themselves but also are aggravating to
B、are damaging by themselves but also are aggravating
C、not only do damage by themselves, they are also aggravating to
D、are doing damage by themselves, and they are also aggravating
答案:
A
2答疑
[Problem Solving]
试题详情
题目：
If a code word is defined to be a sequence of different letters chosen from the 10 letters A, B, C, D, E, F, G, H, I, and J, what is the ratio of the number of 5-letter code words to the number of 4-letter code words?
选项:
A、5 to 4
B、3 to 2
C、2 to 1
D、5 to 1
E、6 to 1
答案:
E
2答疑
[Sentence Correction]
试题详情
题目：
The Swedish warship Vasa, sunk in 1628 and raised in 1961, was preserved in the cold water of Stockholm harbor, where low salinity inhibits the growth of marine borers that in most seas devour every exposed scrap of a sunken ship's wooden hull.
选项:
A、 was preserved in the cold water of Stockholm harbor, where low salinity inhibits
B、 being preserved in the cold water of Stockholm harbor, because the low salinity there is able to inhibit
C、 and preserved in the cold water of Stockholm harbor, the low salinity there inhibits
D、 having been preserved in the cold water of Stockholm harbor, whose low salinity inhibits
E、 had been preserved in the cold water of Stockholm harbor, because of low salinity there inhibiting
答案:
A
0评分
417浏览
[Undefined]
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.
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？
0评分
1441浏览
[Undefined]
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
0评分
1613浏览
[Undefined]
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
0评分
618浏览
[Undefined]
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？
0评分
1423浏览
[GWD]
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
0评分
1009浏览
0评分
672浏览
[Undefined]
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
0评分
689浏览
[Undefined]
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
0评分
160051浏览
0评分
167160浏览
