问答

1答疑

[Data Sufficiency]

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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, 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?
(1)   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.
(2)   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:

答案:

B
1答疑

[Table Analysis]

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文章：

The table lists the women enrolled as a percent of the total enrollment for each of the 3 universities—University X, University Y, and University Z—in Province A for the fall term of several consecutive years. For the fall term of each of these years, the table also lists the women enrolled at the 3 universities combined as a percent of the total combined enrollment at the 3 universities.

Women Enrolled, as a Percent of Total Enrollment

Fall University X University Y University Z Province A
2000 52.8 44.2 58.5 50.6
2001 53.1 44.1 58.9 50.7
2002 53.6 44.0 55.8 50.8
2003 53.3 43.6 58.6 50.5
2004 53.0 43.9 58.1 50.5
2005 52.5 43.7 58.3 50.2
2006 52.2 43.8 58.1 50.1
2007 52.0 43.2 57.8 49.7
2008 51.4 43.8 58.3 49.7

题目：

For each of the following statements, select T if the statement is true based on the information provided; otherwise, select F.

选项:

A、Of the 3 universities, University Y had the smallest total fall enrollment in each of the years 2000 through 2008.
B、In 2008, fewer women were enrolled in college in Province A than in 2000.
C、Each of the 3 universities experienced at least one decline from one fall to the next in the number of women enrolled as a percent of the total enrollment.

答案:

B B A
1答疑

[Data Sufficiency]

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题目：

Of the numbers q, r, s, and t, which is greatest?
  1. The average (arithmetic mean) of q and r is s.
  2. The sum of q and r is t.

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

[Data Sufficiency]

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题目：

On June 1, Mary paid Omar $360 for rent and utilities for the month of June. Mary moved out early, and Omar refunded the money she paid for utilities, but not for rent, for the days in June after she moved out. How many dollars did Omar refund to Mary?
  1. Mary moved out on June 24.
  2. The amount Mary paid for utilities was less than the amount Mary paid for rent.

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

[Sentence Correction]

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题目：

In 1994 the white house named Dr RuthR. Faden chairperson of the federal advisory committee of experts they assigned to do a report on the history and ethics of the government's radiation experiments on humans in the 1950's and1960's.

选项:

A、they assigned to do
B、to be assigned doing
C、that was being assigned doing
D、assigned for doing
E、it assigned to do

答案:

E
1答疑

[Problem Solving]

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题目：

If , which of the following is true?

选项:

A、S > 3
B、S = 3
C、2 < S < 3
D、S = 2
E、S < 2

答案:

E
1答疑

[Data Sufficiency]

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题目：

In a product test of a common cold remedy, x percent of the patients tested experienced side effects from the use of the drug and y percent experienced relief of cold symptoms. What percent of the patients tested experienced both side effects and relief of cold symptoms?
  1. Of the 1,000 patients tested, 15 percent experienced neither side effects nor relief of cold symptoms.
  2. Of the patients tested, 30 percent experienced relief of cold symptoms without side effects.

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]

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文章：

In the arid land along the Colorado River, use of the river's water supply is strictly controlled：farms along the river each have a limited allocation that they are allowed to use for irrigation.But the trees that grow in narrow strips along the river's banks also use its water.Clearly, therefore, if farmers were to remove those trees, more water would be available for crop irrigation.

题目：

Which of the following, if true, most seriously weakens the argument?

选项:

A、The trees along the river's banks shelter it from the sun and wind, thereby greatly reducing the amount of water lost through evaporationOwners of farms along the river will probably not undertake the expense of cutting down trees along the banks unless they are granted a greater allocation of water in return. 
B、Owners of farms along the river will probably not undertake the expense of cutting down trees along the banks unless they are granted a greater allocation of water in return. 
C、The strip of land where trees grow along the river's banks would not be suitable for growing crops if the trees were removed. 
D、The distribution of water allocations for irrigation is intended to prevent farms farther upstream from using water needed by farms farther downstream. 

答案:

A
1答疑

[Data Sufficiency]

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试题详情

题目：

If the integer n is greater than 1, is n equal to 2?

(1)n has exactly two positive factors.

(2)The difference of any two distinct positive factors of n is odd.

选项:

答案:

B
1答疑

[Data Sufficiency]

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题目：

If n is an integer, is n even?
(1) - 1 is an odd integer.
(2)3n + 4 is an even integer.

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
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1156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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3296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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3643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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1212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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2783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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1903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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1222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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1287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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304886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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312012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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