[Problem Solving]
试题详情
题目：
which of the following is a value of X
for which X^11-X^3＞0
选项:
A、–2
B、–1
C、–1/2
D、1/2
E、1
答案:
C
问答
1答疑
1答疑
[Problem Solving]
试题详情
题目：
At a certain food stand, the price of each apple is ¢ 40 and the price of each orange is ¢ 60. Mary selects a total of 10 apples and oranges from the food stand, and the average (arithmetic mean) price of the 10 pieces of fruit is ¢ 56. How many oranges must Mary put back so that the average price of the pieces of fruit that she keeps is ¢ 52?
选项:
A、1
B、2
C、3
D、4
E、5
答案:
E
1答疑
[Problem Solving]
试题详情
题目：
The points R, T, and U lie on a circle that has radius 4. If the length of arc RTU is 
选项:
A、
B、
C、3
D、4
E、6
答案:
D
1答疑
[Two-part Analysis]
试题详情
题目：
选项:
A、The group is sedentary rather than nomadic.
B、The group has not discovered pottery.
C、The group uses thin-Walled pots.
D、The group uses fire for warmth and protection.
E、The group uses thick-walled pots.
答案:
A C
1答疑
[Reading Comprehension]
试题详情
文章：
题目：
The passage suggests that Margaret Cavendish’s decision to become an author was motivated, at least in part, by a desire to
选项:
A、justify her support for the Royalist cause
B、encourage her readers to work toward eradicating Filmerian patriarchalism
C、persuade other women to break free from their political and social isolation
D、analyze the causes for women’s exclusion from the pursuit of power
E、create a world over which she could exercise total control
答案:
E
1答疑
[Sentence Correction]
试题详情
题目：
Beyond the immediate cash flow crisis that the museum faces, its survival depends on if it can broaden its membership and leave its cramped quarters for a site where it can store and exhibit its more than 12,000 artifacts.
选项:
A、if it can broaden its membership and leave
B、whether it can broaden its membership and leave
C、whether or not it has the capability to broaden its membership and can leave
D、its ability for broadening its membership and leaving
E、the ability for it to broaden its membership and leave
答案:
B
1答疑
[Data Sufficiency]
试题详情
题目：
What is the hundreds digit of the integer z?
(1) 10z = 93,120
(2) z rounded to the nearest hundred is 9,300.
选项:
答案:
A
1答疑
[Problem Solving]
试题详情
题目：
What is the value of p3 + 2p?
(1) p2 − 5p + 4 = 0.
(2) The value of p2 + 1p is –2.
(1) p2 − 5p + 4 = 0.
(2) The value of p2 + 1p is –2.
选项:
A、A. if statement (1) ALONE is sufficient to answer the question but statement (2) alone is not sufficient;
B、B. if statement (2) ALONE is sufficient to answer the question but statement (1) alone is not sufficient;
C、C. if the two statements TAKEN TOGETHER are sufficient to answer the question, but NEITHER statement ALONE is sufficient;
D、D. if EACH statement ALONE is sufficient to answer the question;
E、E. if the two statements TAKEN TOGETHER are still NOT sufficient to answer the question.
答案:
B
1答疑
[Problem Solving]
试题详情
题目：
If y is the smallest positive integer such that 3,150 multiplied by y is the square of an integer, then y must be
选项:
A、2
B、5
C、6
D、7
E、14
答案:
E
1答疑
[Critical Reasoning]
试题详情
题目：
Psychologists have studied the impact a person’s attitude has on his ability to accomplish tasks. In one study, a group of college students was outfitted with contraptions designed to administer soothing heat pulses to the students’ neck and shoulder muscles. The students were told that the pulses would enhance their performance of in-class assignments. Only half of these contraptions worked, but neither the students nor the psychologists were told which students would actually receive these pulses. This component of the experiment is often frustrated, however, because
Which one of the following selections, if it is true, completes the sentence most appropriately?
Which one of the following selections, if it is true, completes the sentence most appropriately?
选项:
A、A. frequently the faces of the students who actually receive the pulses become a little flushed.
B、B. students who believe they are receiving the warm pulses do better on their class assignments.
C、C. students who participate in the studies are volunteers who must told that some of them will not receive the heat pulses.
D、D. many students will not complete the experiment if the sessions last too long.
E、E. many of the participating students suffer from tension headaches which readily respond to the heat pulses
答案:
A
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[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？
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1323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
1499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
580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
1342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
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954浏览
0评分
638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
652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
153490浏览
0评分
160599浏览
