[Sentence Correction]
试题详情
题目：
Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy as a result of boundaries in the ocean created by water layers of different temperatures and densities.
选项:
答案:
C
问答
1答疑
1答疑
[Sentence Correction]
试题详情
题目：
Thomas Eakins' powerful style and his choices of subject—the advances in modern surgery, the discipline of sport, the strains of individuals in tension with society or even with themselves—was as disturbing to his own time as it is compelling for ours.
选项:
答案:
B
1答疑
[Reading Comprehension]
试题详情
文章：
题目：
The author of the passage would be most likely to agree with which of the following statements about the Milankovitch theory?
选项:
A、It is the only possible explanation for the ice ages.
B、It is too limited to provide a plausible explanation for the ice ages, despite recent research findings.
C、It cannot be tested and confirmed until further research on volcanic activity is done.
D、It is one plausible explanation, though not the only one, for the ice ages.
E、It is not a plausible explanation for the ice ages, although it has opened up promising possibilities for future research.
答案:
D
1答疑
[Reading Comprehension]
试题详情
题目：
Which of the following best describes the relationship of the second paragraph to the first paragraph?
选项:
A、 It presents contrasting explanations for a phenomenon presented in the first paragraph.
B、 It discusses an exception to a general principle outlined in the first paragraph.
C、 It provides information that qualifies a claim presented in the first paragraph.
D、 It presents an example that strengthens a claim presented in the first paragraph.
E、 It presents an alternative approach to solving a problem discussed in the first paragraph.
答案:
C
1答疑
[Reading Comprehension]
试题详情
文章：
题目：
According to the passage, which of the following best describes a function performed by oligosaccharins?
选项:
A、 Regulating the daily functioning of a plant's cells
B、 Interacting with one another to produce different chemicals
C、 Releasing specific chemical messengers from a plant's cell walls
D、 Producing the hormones that cause plant cells to differentiate to perform different functions
E、 Influencing the development of a plant's cells by controlling the expression of the cells' genes
答案:
E
1答疑
[Reading Comprehension]
试题详情
题目：
The passage is primarily concerned with
选项:
A、 using modern understanding of cultural bias to challenge ethnohistoric documents
B、 evaluating competing descriptions of women's roles in Aztec society
C、 comparing the influence of gender on women's roles in Aztec society and in modern society
D、 remedying a potential misconception about the significance of women's roles in Aztec society
E、 applying new evidence in a reevaluation of ethnohistoric documents
答案:
D
1答疑
[Critical Reasoning]
试题详情
题目：
A company plans to develop a prototype weeding machine that uses cutting blades with optical sensors and microprocessors that distinguish weeds from crop plants by differences in shade of color. The inventor of the machine claims that it will reduce labor costs by virtually eliminating the need for manual weeding.
Which of the following is a consideration in favor of the company's implementing its plan to develop the prototype?
选项:
A、
A. There is a considerable degree of variation in shade of color between weeds of different species.
B、
B. The shade of color of some plants tends to change appreciably over the course of their growing season.
C、
C. When crops are weeded manually, overall size and leaf shape are taken into account in distinguishing crop plants from weeds.
D、
D. Selection and genetic manipulation allow plants of virtually any species to be economically bred to have a distinctive shade of color without altering their other characteristics.
E、
E. Farm laborers who are responsible for the manual weeding of crops carry out other agricultural duties at times in the growing season when extensive weeding is not necessary.
答案:
D
1答疑
[Critical Reasoning]
试题详情
题目：
Gortland has long been narrowly self-sufficient in both grain and meat. However, as per capita income in Gortland has risen toward the world average, per capita consumption of meat has also risen toward the world average, and it takes several pounds of grain to produce one pound of meat. Therefore, since per capita income continues to rise, whereas domestic grain production will not increase, Gortland will soon have to import either grain or meat or both.
Which of the following is an assumption on which the argument depends?
Which of the following is an assumption on which the argument depends?
选项:
A、The total acreage devoted to grain production in Gortland will soon decrease.
B、Importing either grain or meat will not result in a significantly higher percentage of Gortlanders’ incomes being spent on food than is currently the case.
C、The per capita consumption of meat in Gortland is increasing at roughly the same rate across all income levels.
D、The per capita income of meat producers in Gortland is rising faster than the per capita income of grain producers.
E、People in Gortland who increase their consumption of meat will not radically decrease their consumption of grain.
答案:
E
1答疑
[Data Sufficiency]
试题详情
题目：
A rectangular solid has length, width, and height of L cm, W cm, and H cm, respectively. If these dimensions are increased by x%, y%, and z%, respectively, what is the percentage increase in the total surface area of the solid?
- L, W, and H are in the ratios of 5:3:4.
- x = 5, y = 10, z = 20
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:
C
1答疑
[Reading Comprehension]
试题详情
题目：
The passage suggests that methiocarb and metaldehyde would be more effective as slug poisons if it were true that they
选项:
A、disrupt the slug's digestive processes rather than its reproductive functions
B、reduce the slug's ability to taste food
C、begin to affect the feeding behavior of a slug only after it has ingested a lethal dose
D、reach the central pattern generator more quickly
E、accumulate only in the central pattern generator rather than throughout the brain
答案:
C
0评分
1931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
5019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
5702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
1911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
4129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
2894浏览
0评分
1913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
2002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
426740浏览
0评分
433878浏览
