问答

3答疑

[Data Sufficiency]

试题详情

题目:

Joanna bought only $0.15 stamps and $0.29 stamps.  How many $0.15 stamps did she buy?
(1)     She bought $4.40 worth of stamps.
(2)     She bought an equal number of $0.15 stamps and $0.29 stamps.

选项:

答案:

A
3答疑

[Sentence Correction]

试题详情

题目:

Three out of every four automobile owners in the United States also own a bicycle.

选项:

A、Three out of every four automobile owners in the United States also own a bicycle.
B、Out of every four, three automobile owners in the United States also owns a bicycle.
C、Bicycles are owned by three out of every four owners of automobiles in the United States.
D、In the United States, three out of every four automobile owners owns bicycles.
E、Out of every four owners of automobiles in the United States, bicycles are also owned by three.

答案:

A
3答疑

[Sentence Correction]

试题详情

题目:

Rather than ignore a company that seems about to fail, investment analysts should recognize that its reorganization and recent uptick in revenue, combined with its dynamic new leadership, indicate that the firm's prospects must be taken seriously.

选项:

A、Rather than ignore a company that seems about to fail,
B、Rather than ignoring a company that is about to seemingly fail,
C、Instead of a company that is seemingly about to fail being ignored,
D、Instead of ignore a company that seems about to fail,
E、In place of ignoring a company's imminent failure seemingly about to occur,

答案:

A
3答疑

[Reading Comprehension]

试题详情

文章:

    Citing the fact that the real gross domestic product (GDP) per capita was higher in 1997 than ever before, some journalists have argued that the United States economy performed ideally in 1997. However, the real GDP is almost always higher than ever before; it falls only during recessions. One point these journalists overlooked is that in 1997, as in the twenty-four years immediately preceding it, the real GDP per capita grew nearly one-half percent a year more slowly than it had on aver-age between 1873 and 1973. Were the 1997 economy as robust as claimed, the growth rate of real GDP per capita in 1997 would have surpassed the average growth rate of real GDP percapita between 1873 and 1973 because over fifty percent of the population worked for wages in 1997 whereas only forty percent worked for wages between 1873 and 1973. If the growth rate of labor productivity (output perhour of goods and services) in 1997 had equaled its average growth rate between 1873 and 1973 of more than two percent, then, given the proportionately larger workforce that existed in 1997, real GDP per capita in 1997 would have been higher than it actually was, since output is a major factor in GDP. However, because labor productivity grew by only one percent in 1997, real GDP per capita grew more slowly in 1997 than it had on average between 1873 and 1973.

题目:

According to the passage, which of the following is true of the average rate at which real GDP per capita grew in the twenty-four years immediately before 1997?

选项:

A、It was less than it had been between 1873 and 1973 because only forty percent of the population worked for wages between 1873 and 1973.
B、It was less than it had been between 1873 and 1973 because labor productivity grew less between 1973 and 1997 than it had between 1873 and 1973.
C、It was less than it had been between 1873 and 1973 as a result of an increase in the percentage of the population earning wages during these years.
D、It was less than the average rate at which real GDP per capita grew between 1873 and 1973.
E、It was less than the rate at which real GDP per capita grew in 1997.

答案:

D
3答疑

[Problem Solving]

试题详情

题目:

Each year for 4 years, a farmer increased the number of trees in a certain orchard by of the number of trees in the orchard the preceding year. If all of the trees thrived and there were 6,250 trees in the orchard at the end of the 4-year period, how many trees were in the orchard at the beginning of the 4-year period?

选项:

A、1,250
B、1,563
C、2,250
D、2,560
E、2,752

答案:

D
3答疑

[Problem Solving]

试题详情

题目:

In a corporation, 50 percent of the male employees and 40 percent of the female employees are at least 35 years old. If 42 percent of all the employees are at least 35 years old, what fraction of the employees in the corporation are females?

选项:

A、3/5
B、2/3
C、3/4
D、4/5
E、5/6

答案:

D
3答疑

[Critical Reasoning]

试题详情

题目:

Which of the following best completes the passage below?
 
At a recent conference on environmental threats to the North Sea, most participating countries favored uniform controls on the quality of effluents, whether or not specific environmental damage could be attributed to a particular source of effluent.  What must, of course, be shown, in order to avoid excessively restrictive controls, is that __________.

选项:

A、any uniform controls that are adopted are likely to be implemented without delay
B、any substance to be made subject to controls can actually cause environmental damage
C、the countries favoring uniform controls are those generating the largest quantities of effluents
D、all of any given pollutant that is to be controlled actually reaches the North Sea at present
E、environmental damage already inflicted on the North Sea is reversible

答案:

B
3答疑

[Problem Solving]

试题详情

题目:

There are 8 books on a shelf, of which 2 are paperbacks and 6 are hardbacks.  How many possible selections of 4 books from this self include at least one paperback?

选项:

A、 40
B、 45
C、 50
D、 55
E、 60

答案:

D
3答疑

[Problem Solving]

试题详情

题目:

The parallelogram shown has four sides of equal length. What is the ratio of the length of the shorter diagonal to the length of the longer diagonal?

选项:

A、
B、
C、
D、
E、

答案:

D
3答疑

[Reading Comprehension]

试题详情

文章:

    Ecoefficiency (measures to minimize environmental impact through the reduction or elimination of waste from production processes) has become a goal for companies worldwide, with many realizing significant cost savings from such innovations. Peter Senge and Goran Carstedt see this development as laudable but suggest that simply adopting ecoefficiency innovations could actually worsen environmental stresses in the future. Such innovations reduce production waste but do not alter the number of products manufactured nor the waste generated from their use and discard; indeed, most companies invest in ecoefficiency improvements in order to increase profits and growth. Moreover, there is no guarantee that increased economic growth from ecoefficiency will come in similarly ecoefficient ways, since in today's global markets, greater profits may be turned into investment capital that could easily be reinvested in old-style eco-inefficient industries. Even a vastlymore ecoefficient industrial system could, were it to grow much larger, generate more total waste and destroy more habitat and species than would a smaller, less ecoefficient economy. Senge and Carstedt argue that to preserve the global environment and sustain economic growth, businesses must develop a new systemic approach that reduces total material use and total accumulated waste. Focusing exclusively on ecoefficiency, which offers a compelling business case according to established thinking, may distract companies from pursuing radically different products and business models.

题目:

According to the passage, an exclusive pursuit of ecoefficiency may cause companies to

选项:

A、neglect the development of alternative business models and products
B、keep the number of products that they manufacture unchanged
C、invest capital from increased profits primarily in inefficient and outmoded industries that may prove unprofitable
D、overemphasize the production process as the key to increasing profits and growth
E、focus more on reducing costs than on reducing the environmental impact of production processes

答案:

A
0评分
564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.
我选的CE,和EC有什么区别?怎么选出EC的?
0评分
1707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
1910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
715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
1623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
1141浏览

[OG]

The primary purpose of the passage is to
为什么选E不选B
0评分
765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
780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
180656浏览

[Undefined]

Analytical!
请问may老师,这题该用什么思路来做?
0评分
187770浏览

[Undefined]

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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