问答

1答疑

[Problem Solving]

试题详情

题目:

If X is the hundredths digit in the decimal 0.1X and if Y is the thousandths digit in the decimal 0.02Y, where X and Y are nonzero digits, which of the following is closest to the greatest possible value of ?

选项:

A、4
B、5
C、6
D、9
E、10

答案:

D
1答疑

[Critical Reasoning]

试题详情

题目:

Consumer advocate: In our nation, food packages must list the number of calories per food serving. But most of the serving sizes used are misleadingly small and should be updated. The serving sizes were set decades ago, when our nation’s people typically ate smaller portions than they do today, and, as a result, people eating typical portions today consume more calories than the package labeling appears to indicate that they will. It is time package labeling reflected these changes.

Which of the following is the main point of the consumer advocate’s argument?

选项:

A、The number of calories per serving listed on most food packages in the consumer advocate’s nation is misleadingly small.
B、Most serving sizes used on food packages in the consumer advocate’s nation should be increased to reflect today’s typical portion sizes.
C、People eating typical portions today often consume far more calories than the number of calories per serving listed on food packages in the consumer advocate’s nation.
D、The serving sizes used on food packages in the consumer advocate’s nation were set when people ate smaller portions on average than they do today.
E、The use of misleadingly small serving sizes on food packages in the consumer advocate’s nation probably leads many people to consume more calories than they otherwise would.

答案:

B
1答疑

[Problem Solving]

试题详情

题目:

A grid of 3 rows and 5 columns has its top right corner labeled Y and its bottom left corner labeled X. An illustration of a compass is on the right denoting west is leftward, east is rightward, north is upward, and south is downward.

In the figure above, X and Y represent locations in a district of a certain city where the streets form a rectangular grid. In traveling only north or east along the streets from X to Y, how many different paths are possible?

选项:

A、720
B、512
C、336
D、256
E、56

答案:

E
1答疑

[Critical Reasoning]

试题详情

题目:

Banker: My country’s laws require every bank to invest in its local community by lending money to local businesses, providing mortgages for local home purchases, and so forth. This is intended to revitalize impoverished local communities. But it is clear that the law will soon entirely cease to serve its intended purpose. An increasing number of banks incorporated in our country exist solely on the Internet and are not physically located in any specific community.

The banker’s argument is most vulnerable to criticism on which of the following grounds?

选项:

A、It overlooks the possibility that most banks that are physically located in specific communities in the banker’s country are not located in impoverished communities.
B、It takes for granted that a law that ceases to serve its originally intended purpose no longer serves any other beneficial purpose, either.
C、It confuses a condition that would, if present, be likely to produce a given effect, with a condition that would probably be the cause if that effect were present.
D、It overlooks the possibility that even if there is a strong correlation between two phenomena, neither of those phenomena are necessarily causally responsible for the other.
E、It fails to adequately address the possibility that an increase in the number of banks of one kind in the banker’s country will not lead to the complete elimination of banks of another kind.

答案:

E
1答疑

[Problem Solving]

试题详情

题目:

If p is the product of the integers from 1 to 30, inclusive, what is the greatest integer k for which 3k is a factor of ?

选项:

A、10
B、12
C、14
D、16
E、18

答案:

C
1答疑

[Problem Solving]

试题详情

题目:

Which of the following describes the set of all possible values of the positive integer k such that, for each positive odd integer n, the value of is midway between consecutive integers?

选项:

A、All positive integers greater than 2
B、All prime numbers
C、All positive even integers
D、All even prime numbers
E、All positive even multiples of 5

答案:

D
1答疑

[Data Sufficiency]

试题详情

题目:

On the number line shown, is zero halfway between r and s ?
(1)s is to the right of zero.
(2)The distance between t and r is the same as the distance between t and –s.

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

[Problem Solving]

试题详情

题目:

The sum of the ages of Doris and Fred is y years. If Doris is 12 years older than Fred, how many years old will Fred be y years from now, in terms of y ?

选项:

A、y – 6
B、2y – 6
C、
D、
E、

答案:

D
1答疑

[Reading Comprehension]

试题详情

题目:

According to the passage, Daily sees monetization as an indication of which of the following?

选项:

A、The centrality of economic interests to people’s actions
B、The reluctance of the critics of environmentalism to acknowledge the importance of conservation
C、The inability of financial interests and ecological interests to reach a common ideological ground
D、The inevitability of environmental degradation
E、The inevitability of the growth of ecological services in the future

答案:

A
1答疑

[Sentence Correction]

试题详情

题目:

Rivaling the pyramids of Egypt or even the ancient cities of the Maya as an achievement, the army of terra-cotta warriors created to protect Qin Shi Huang, China's first emperor, in his afterlife is more than 2,000 years old and took 700,000 artisans more than 36 years to complete.

选项:

A、the army of terra-cotta warriors created to protect Qin Shi Huang, China's first emperor, in his afterlife is more than 2,000 years old and took 700,000 artisans more than 36 years to complete
B、Qin Shi Huang, China's first emperor, was protected in his afterlife by an army of terra-cotta warriors that was created more than 2,000 years ago by 700,000 artisans who took more than 36 years to complete it
C、it took 700,000 artisans more than 36 years to create an army of terra-cotta warriors more than 2,000 years ago that would protect Qin Shi Huang, China's first emperor, in his afterlife
D、more than 2,000 years ago, 700,000 artisans worked more than 36 years to create an army of terra-cotta warriors to protect Qin Shi Huang, China's first emperor, in his afterlife
E、more than 36 years were needed to complete the army of terra-cotta warriors that 700,000 artisans created 2,000 years ago to protect Qin Shi Huang, China's first emperor, in his afterlife

答案:

A
0评分
1293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.
我选的CE,和EC有什么区别?怎么选出EC的?
0评分
3663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
4030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
1339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
3005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
2081浏览

[OG]

The primary purpose of the passage is to
为什么选E不选B
0评分
1336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
1407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
332689浏览

[Undefined]

Analytical!
请问may老师,这题该用什么思路来做?
0评分
339816浏览

[Undefined]

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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