[Problem Solving]
试题详情
题目：
For all positive integers m, 
when m is odd and 
when m is even. Which of the following is equivalent to 
?
when m is odd and when m is even. Which of the following is equivalent to ?选项:
A、
B、
C、
D、
E、
答案:
D
问答
1答疑
1答疑
[Reading Comprehension]
试题详情
文章：
Most students arrive at [college] using "discrete, concrete, and absolute categories to understand people, knowledge, and values." These students live with a dualistic view, seeing "the world in polar terms of we-right-good vs. other-wrong-bad." These students cannot acknowledge the existence of more than one point of view toward any issue. There is one "right" way. And because these absolutes are assumed by or imposed on the individual from external authority, they cannot be personally substantiated or authenticated by experience. These students are slaves to the generalizations of their authorities. An eye for an eye! Capital punishment is apt justice for murder. The Bible says so.
Most students break through the dualistic stage to another equally frustrating stage—multiplicity. Within this stage, students see a variety of ways to deal with any given topic or problem. However, while these students accept multiple points of view, they are unable to evaluate or justify them. To have an opinion is everyone’s right. While students in the dualistic stage are unable to produce evidence to support what they consider to be self-evident absolutes, students in the multiplistic stage are unable to connect instances into coherent generalizations. Every assertion, every point, is valid. In their democracy they are directionless. Capital punishment? What sense is there in answering one murder with another?
The third stage of development finds students living in a world of relativism. Knowledge is relative: right and wrong depend on the context. No longer recognizing the validity of each individual idea or action, relativists examine everything to find its place in an overall framework. While the multiplist views the world as unconnected, almost random, the relativist seeks always to place phenomena into coherent larger patterns. Students in this stage view the world analytically. They appreciate authority for its expertise, using it to defend their own generalizations. In addition, they accept or reject ostensible authority after systematically evaluating its validity. In this stage, however, students resist decision making. Suffering the ambivalence of finding several consistent and acceptable alternatives, they are almost overwhelmed by diversity and need means for managing it. Capital punishment is appropriate justice—in some instances.
In the final stage students manage diversity through individual commitment. Students do not deny relativism. Rather they assert an identity by forming commitments and assuming responsibility for them. They gather personal experience into a coherent framework, abstract principles to guide their actions, and use these principles to discipline and govern their thoughts and actions. The individual has chosen to join a particular community and agrees to live by its tenets. The accused has had the benefit of due process to guard his civil rights, a jury of peers has found him guilty, and the state has the right to end his life. This is a principle my community and I endorse.
题目：
Which one of the following best describes the organization of the passage?
选项:
A、A. Four methods of thought are compared and contrasted.
B、B. It is shown how each of four types of thought evolved from each other.
C、C. Four methods of thought are presented, and each is shown to complement the other.
D、D. The evolution of thought from simplistic and provincial through considered and cosmopolitan is illustrated by four stages.
E、E.The evolution of thought through four stages is presented, and each stage is illustrated by how it views capital punishment.
答案:
E
1答疑
[Problem Solving]
试题详情
题目：
If x ＞ 0.9, which of the following could be the value of x?
选项:
A、√0.81
B、√0.9
C、(0.9)2
D、(0.9) (0.99)
E、1 - √0.01
答案:
B
1答疑
[Problem Solving]
试题详情
题目：
The age of the Earth is approximately 1.3×1017 seconds, and one year is approximately 3.2×107 seconds. Which of the following is closest to the age of the Earth in years?
畮选项:
A、2.5×109
B、4.1×109
C、1.9×1010
D、2.5×1011
E、4.1×1011
答案:
B
1答疑
[Sentence Correction]
试题详情
题目：
The most vexing problem faced by researchers exploring wind-powered
generation of electricity is achieving a constant flow of power
from an unpredictable natural source that meets demand,
but so the flow does not overload electrical grids with sudden
voltage increases选项:
A、achieving a constant flow of power from an unpred-ictable natural source that meets demand, but so the flow does not overload
B、achieving a constant flow of power from an unpredictable natural source, which meets demand but without overloading.
C、how to achieve a constant flow of power from an unpredictable natural source, a flow that meets demand but does not overload.
D、how to achieve a constant flow of power from an unpredictable natural source, but a flow that meets demand without overloading
E、how a constant flow of power from an unp-redictable natural source can be achieved, which meets demand but does not overload.
答案:
C
1答疑
[Critical Reasoning]
试题详情
题目：
Rev. Hayes says that an action is right if it benefits one or more other people and an action is wrong if it harms anyone. Rev. Hayes says the action is wrong if the harm could have been seen with reasonable thought or whether or not harm was intended to anyone.
Which one of the following most clearly conforms to the principle cited above?
Which one of the following most clearly conforms to the principle cited above?
选项:
A、A. Frank wrote a proposal attempting to cause trouble between Linda and Jane; this action was morally bad, even though, in fact, it had an opposite effect than the one intended.
B、B. Giving a homeless man a ride to a local shelter, Fred was in a serious car accident that was not his fault. The homeless man, injured in the accident, received a settlement from the other driver's insurance company. The settlement allowed him to get an apartment for him and his family; thus showing that a right action can have both bad and good consequences.
C、C. Giving a homeless man a ride to a local shelter, George was in a serious car accident that was his fault. The homeless man, injured in the accident, received a settlement from George's insurance company. The settlement allowed him to get an apartment for him and his family; thus showing that a right action can have both bad and good consequences.
D、D. Linda agreed to watch her friend's cat for two weeks at her home. Everything went fine for 10 days. Then, on the next day, when Linda opened the window and sat down to watch television, the cat fell out of the window and was injured. She took the cat to a local vet, paid the bill, and the cat was almost recovered by the time Linda's friend returned. Even though she intended no harm, Linda's action was wrong.
E、E. Mary, a trained social worker, was asked by a homeless man for food. She walked with the man to the local shelter that runs a soup kitchen. There, the man choked while eating lunch and died. Thus, Mary performed a wrong action.
答案:
D
1答疑
[Reading Comprehension]
试题详情
文章：
题目：
Which of the following, if true, would most weaken the author’s conclusion in lines 18–22 ?
选项:
A、New research reveals that the number of species of birds and parasites that prey on lepidoptera has dropped significantly in recent years.
B、New experiments in which the habitats of lepidoptera are altered in previously untried ways result in the shortening of lepidoptera population cycles.
C、Recent experiments have revealed that the nuclear polyhedrosis virus is present in a number of predators and parasites of lepidoptera.
D、Differences among the habitats of lepidoptera species make it difficult to assess the effects of weather on lepidoptera population cycles.
E、Viral disease is typically observed in a large proportion of the lepidoptera population.
答案:
B
1答疑
[Problem Solving]
试题详情
题目：
Let ∇ denote a mathematical operation. Is it true that x∇y = y∇x for all x and y?
(1) x∇y = 1x + 1y
(2) x∇y = x − y
(1) x∇y = 1x + 1y
(2) x∇y = x − y
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:
D
1答疑
[Reading Comprehension]
试题详情
文章：
题目：
Which of the following statements about Clark’s study of the telephone exchange can be inferred from information in the passage?
选项:
A、Clark’s reason for undertaking the study was to undermine Braverman’s analysis of the function of technology.
B、Clark’s study suggests that the implementation of technology should be discussed in the context of conflict between labor and management.
C、Clark examined the impact of changes in the technology of switching at the exchange in terms of overall operations and organization.
D、Clark concluded that the implementation of new switching technology was equally beneficial to management and labor.
E、Clark’s analysis of the change in switching systems applies only narrowly to the situation at the particular exchange that he studied.
答案:
C
1答疑
[Sentence Correction]
试题详情
题目：
She was less successful after she had emigrated to New York compared to her native Germany, photographer Lotte Jacobi nevertheless earned a small group of discerning admirers, and her photographs were eventually exhibited in prestigious galleries across the United States.
选项:
A、She was less successful after she had emigrated to New York compared to
B、Being less successful after she had emigrated to New York as compared to
C、Less successful after she emigrated to New York than she had been in
D、Although she was less successful after emigrating to New York when compared to
E、She had been less successful after emigrating to New York than in
答案:
C
0评分
334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
1287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
1467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
565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
1318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
940浏览
0评分
631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
637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
150686浏览
0评分
157794浏览
