问答

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[Critical Reasoning]

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题目：

Press Secretary: Our critics claim that the President's recent highway project cancellations demonstrate a vindictive desire to punish legislative districts controlled by opposition parties. They offer as evidence the fact that 90 percent of the projects canceled were in such districts. But all of the canceled projects had been identified as wasteful in a report written by respected nonpartisan auditors. So the President's choice was clearly motivated by sound budgetary policy, not partisan politics.

Which of the following is an assumption on which the press secretary's argument depends?

选项:

A、Canceling highway projects was not the only way for the President to punish legislative districts controlled by opposition parties.
B、The scheduled highway projects identified as wasteful in the report were not mostly projects in districts controlled by the President's party.
C、The number of projects canceled was a significant proportion of all the highway projects that were to be undertaken by the government in the near future.
D、The highway projects canceled in districts controlled by the President's party were not generally more expensive than the projects canceled in districts controlled by opposition parties.
E、Reports by nonpartisan auditors are not generally regarded by the opposition parties as a source of objective assessments of government projects.

答案:

B
2答疑

[Critical Reasoning]

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题目：

Editorial:
 
An arrest made by a Midville police officer is provisional until the officer has taken the suspect to the police station and the watch commander has officially approved the arrest.  Such approval is denied if the commander judges that the evidence on which the provisional arrest is based is insufficient.  A government efficiency expert has found that almost all provisional arrests meet standards for adequacy of evidence that watch commanders enforce.  The expert therefore recommends that the watch commander's approval should no longer be required since the officers' time spent obtaining approval is largely wasted.  This recommendation should be rejected as dangerous, however, since there is no assurance that the watch commanders' standards will continue to be observed once approval is no longer required.
 
In the editorial, the two portions in boldface play which of the following roles?

选项:

A、The first is a recommendation made by the editorial; the second acknowledges a potential objection against that recommendation.
B、The first is a proposal against which the editorial is directed; the second is a judgment reached by the editorial concerning that proposal.
C、The first provides evidence in support of a recommendation that the editorial supports; the second is the conclusion reached by the editorial.
D、The first is a position that the editorial challenges; the second is a judgment that was made in support of that challenged position.
E、The first is a recommendation that the editorial questions; the second provides evidence against that recommendation.

答案:

B
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[Critical Reasoning]

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题目：

The Hyksos invaded the Nite Delta of Egypt and ruled it from 1550 B. C. Their origin is uncertain, but archaeologists hypothesize that they were Canaatites. In support of this hypothesis, the archaeologists point out that excavations of Avaris,the Hyksos capital in Egypt,have uncovered large numbers of artifacts virtually identical to artifacts produced in Ashkelon, and Ashkelon was a major city of Canaan at the time of the Hyksos' invasion.
 
In order to evaluate the force of the archaeologists' evidence, it would be most useful to determine which of the following ?

选项:

A、Whether artifacts from Ashkelon were widely traded to non-Canaanite cities
B、Whether significant numbers of artifacts that do not resemble artifacts produced in Ashkelon have been found at Avaris
C、Whether Avaris was the nearest Hyksos city in Egypt to Canaan
D、Whether Ashkelon after 1550 b.C. continued to produce artifacts similar to those found at Avaris
E、Whether any artifacts produced by the Hyksos arter 1550 B.C. have been found in Egypt

答案:

A
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[Data Sufficiency]

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题目：

Seven different numbers are selected from the integers 1 to 100, and each number is divided by 7. What is the sum of the remainders?
(1)   The range of the seven remainders is 6.
(2) The seven numbers selected are consecutive integers.

选项:

答案:

B
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[Problem Solving]

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题目：

Each of the integers from 0 to 9, inclusive, is written on a separate slip of blank paper and the ten slips are dropped into a hat. If the slips are then drawn one at a time without replacement, how many must be drawn to ensure that the numbers on two of the slips drawn will have a sum of 10 ?

选项:

A、Three
B、Four
C、Five
D、Six
E、Seven

答案:

E
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[Data Sufficiency]

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题目：

If a and b are positive, is less than?
(1)     a = 2b
(2)     a + b > 1

选项:

答案:

B
2答疑

[Data Sufficiency]

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题目：

Merle’s spare change jar has exactly 16 U.S. coins, each of which is a 1-cent coin, a 5-cent coin, a 10-cent coin, a 25-cent coin, or a 50-cent coin. If the total value of the coins in the jar is 288 U.S. cents, how many 1-cent coins are in the jar?
  1. The exact numbers of 10-cent, 25-cent, and 50-cent coins among the 16 coins in the jar are, respectively, 6, 5, and 2.
  2. Among the 16 coins in the jar there are twice as many 10-cent coins as 1-cent coins.

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:

D
2答疑

[Reading Comprehension]

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文章：

    In corporate purchasing, competitive scrutiny is typically limited to suppliers of items that are directly related to end products. With "indirect" purchases (such as computers, advertising, and legal services), which are not directly related to production, corporations often favor "supplier partnerships" (arrangements in which the purchaser forgoes the right to pursue alternative suppliers), which can inappropriately shelter suppliers from rigorous competitive scrutiny that might afford the purchaser economic leverage. There are two independent variables-availability of alternatives and ease of changing suppliers-that companies should use to evaluate the feasibility of subjecting suppliers of indirect purchases to competitive scrutiny. This can create four possible situations.

    In Type 1 situations, there are many alternatives and change is relatively easy. Open pursuit of alternatives-by frequent competitive bidding, if possible-will likely yield the best results. In Type 2 situations, where there are many alternatives but change is difficult-as for providers of employee health-care benefits-it is important to continuously test the market and use the results to secure concessions from existing suppliers. Alternatives provide a credible threat to suppliers, even if the ability to switch is constrained. In Type 3 situations, there are few alternatives, but the ability to switch without difficulty creates a threat that companies can use to negotiate concessions from existing suppliers. In Type 4 situations, where there are few alternatives and change is difficult, partnerships may be unavoidable.

题目：

Which of the following best describes the relation of the second paragraph to the first?

选项:

A、The second paragraph offers proof of an assertion made in the first paragraph.
B、The second paragraph provides an explanation for the occurrence of a situation described in the first paragraph.
C、The second paragraph discusses the application of a strategy proposed in the first paragraph.
D、The second paragraph examines the scope of a problem presented in the first paragraph.
E、The second paragraph discusses the contradictions inherent in a relationship described in the first paragraph.

答案:

C
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[Critical Reasoning]

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题目：

Offshore oil-drilling operations entail an unavoidable risk of an oil spill, but importing oil on tankers presently entails an even greater such risk per barrel of oil.  Therefore, if we are to reduce the risk of an oil spill without curtailing our use of oil, we must invest more in offshore operations and import less oil on tankers.
Which of the following, if true, most seriously weakens the argument above?

选项:

A、Tankers can easily be redesigned so that their use entails less risk of an oil spill.
B、Oil spills caused by tankers have generally been more serious than those caused by offshore operations.
C、The impact of offshore operations on the environment can be controlled by careful management.
D、Offshore operations usually damage the ocean floor, but tankers rarely cause such damage.
E、Importing oil on tankers is currently less expensive than drilling for it offshore.

答案:

A
2答疑

[Data Sufficiency]

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题目：

Can the positive integer n be written as the sum of two different positive prime numbers?
  1. n is greater than 3.
  2. n is odd.

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
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390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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1399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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1565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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599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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1391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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981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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653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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670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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157592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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164701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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