[Data Sufficiency]
试题详情
题目：
What is the value of │x + 7│?
(1) │x + 3│= 14
(2) (x + 2)2 = 169
V>T选项:
答案:
C
问答
1答疑
1答疑
[Sentence Correction]
试题详情
题目：
Under high pressure and intense heat, graphite, the most stable form of pure carbon, changes into the substance commonly referred to as diamond and remaining this way whether or not the heat and pressure are removed.
选项:
A、
A. remaining this way whether or not
B、
B. remaining like that even as
C、
C. remaining as such whether or not
D、
D. remains in this way although
E、
E. remains thus even when
答案:
E
1答疑
[Reading Comprehension]
试题详情
文章：
The system of patent-granting, which confers temporary monopolies for the exploitation of new technologies, was originally established as an incentive to the pursuit of risky new ideas. Yet studies of the most patent-conscious business of all—the semiconductor industry—suggests that firms do not necessarily become more innovative as they increase their patenting activity. Ziedonis and Hall, for example, found that investment in research and development (a reasonable proxy for innovation) did not substantially increase between 1982 and 1992, the industry's most feverish period of patenting. Instead, semiconductor firms simply squeezed more patents out of existing research and development expenditures. Moreover, Ziedonis and Hall found that as patenting activity at semiconductor firms increased in the 1980s, the consensus among industry employees was that the average quality of their firms' patents declined. Though patent quality is a difficult notion to measure, the number of times a patent is cited in the technical literature is a reasonable yardstick, and citations per semiconductor patent did decline during the 1980s. This decline in quality may be related to changes in the way semiconductor firms managed their patenting process: rather than patenting to win exclusive rights to a valuable new technology, patents were filed more for strategic purposes, to be used as bargaining chips to ward off infringement suits or as a means to block competitors' products.
题目：
The passage suggests that the use of patents as bargaining chips to ward off infringement suits
选项:
A、was rarely successful during the 1980s
B、became increasingly infrequent in the 1980s
C、does not fulfill the intended purpose of the patent-granting system
D、is a consequence of the decline in patent quality
E、is discussed increasingly in the semiconductor industry's technical literature
答案:
C
1答疑
[Data Sufficiency]
试题详情
题目：
A school administrator will assign each student in a group of n students to one of m classrooms. If 3 < m < 13 < n, is it possible to assign each of the n students to one of the m classrooms so that each classroom has the same number of students assigned to it?
- It is possible to assign each of 3n students to one of m classrooms so that each classroom has the same number of students assigned to it.
- It is possible to assign each of 13n students to one of m classrooms so that each classroom has the same number of students assigned to it.
选项:
A、Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B、Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C、BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D、EACH statement ALONE is sufficient.
E、Statements (1) and (2) TOGETHER are not sufficient.
答案:
B
1答疑
[Problem Solving]
试题详情
题目：
If s is the product of the integers from 100 to 200, inclusive, and t is the product of the integers from 100 to 201, inclusive, what is 1/s + 1/t in terms of t?
选项:
A、(201)2/t
B、[(202)(201)]/t
C、201/t
D、202/t
E、[(202)(201)]/t2
答案:
D
1答疑
[Reading Comprehension]
试题详情
题目：
According to the passage, which of the following is a prediction that is based on the strength of the gravitational attraction of small asteroids?
选项:
A、Small asteroids will be few in number.
B、Small asteroids will be monoliths.
C、Small asteroids will collide with other asteroids very rarely.
D、Most small asteroids will have very fast rotation rates.
E、Almost no small asteroids will have very slow rotation rates.
答案:
B
1答疑
[Sentence Correction]
试题详情
题目：
Faced with an estimated $2 billion budget gap, the city's mayor proposed a nearly 17 percent reduction in the amount allocated the previous year to maintain the city's major cultural institutions and to subsidize hundreds of local arts groups.
选项:
A、
A. proposed a nearly 17 percent reduction in the amount allocated the previous year to maintain the city's major cultural institutions and to subsidize
B、
B. proposed a reduction from the previous year of nearly 17 percent in the amount it was allocating to maintain the city's major cultural institutions and for subsidizing
C、
C. proposed to reduce, by nearly 17 percent, the amount from the previous year that was allocated for the maintenance of the city's major cultural institutions and to subsidize
D、
D. has proposed a reduction from the previous year of nearly 17 percent of the amount it was allocating for maintaining the city's major cultural institutions, and to subsidize
E、
E. was proposing that the amount they were allocating be reduced by nearly 17 percent from the previous year for maintaining the city's major cultural institutions and for the subsidization
答案:
A
1答疑
[Data Sufficiency]
试题详情
题目：
How many members of a certain legislature voted against the measure to raise their salaries?
- of the members of the legislature did not vote on the measure.
- If 5 additional members of the legislature had voted against the measure, then the fraction of members of the legislature voting against the measure would have been .
选项:
A、Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B、Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C、BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D、EACH statement ALONE is sufficient.
E、Statements (1) and (2) TOGETHER are not sufficient.
答案:
E
1答疑
[Critical Reasoning]
试题详情
题目：
Pharmaceutical companies spend more than ever on research and development; yet the number of new drugs patented each year has dropped since 1963. At the same time, profits—at constant 1963 dollars—for the industry as a whole have been steadily increasing.
Which of the following, if true, is the single factor most likely to explain, at least in part, the three trends mentioned above for money spent, drugs patented, and profits made?
选项:
A、Government regulations concerning testing requirements for novel drugs have become steadily more stringent.
B、Research competition among pharmaceutical companies has steadily intensified as a result of a general narrowing of research targets to drugs for which there is a large market.
C、Many pharmaceutical companies have entered into collaborative projects with leading universities, while others have hired faculty members away from universities by offering very generous salaries.
D、The number of cases in which one company’s researchers duplicated work done by another company’s researchers has steadily grown.
E、The advertising budgets of the major pharmaceutical companies have grown at a higher rate than their profits have.
答案:
B
1答疑
[Critical Reasoning]
试题详情
题目：
Last year a record number of new manufacturing jobs were created. Will this year bring another record? Well, any new manufacturing job is created either within an existing company or by the start-up of a new company. Within existing firms, new jobs have been created this year at well below last year's record pace. At the same time, there is considerable evidence that the number of new companies starting up will be no higher this year than it was last year and there is no reason to think that the new companies starting up this year will create more jobs per company than did last year's start-ups. So clearly, the number of new jobs created this year will fall short of last year's record.
In the argument given, the two portions in boldface play which of the following roles?
选项:
A、The first is a claim that the argument challenges; the second is an explicit assumption on which that challenge is based.
B、The first is a claim that the argument challenges; the second is a judgment advanced in support of the main conclusion of the argument.
C、The first provides evidence in support of the main conclusion of the argument; the second is an objection that has been raised against that main conclusion.
D、The first provides evidence in support of the main conclusion of the argument; the second is a judgment advanced in support of that main conclusion.
E、The first and the second are each claims that have been advanced in support of a position that the argument opposes.
答案:
D
0评分
1940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
5048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
5727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
1928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
4151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
2914浏览
0评分
1931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
2014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
428504浏览
0评分
435642浏览
