问答

1答疑

[Problem Solving]

登录查看答疑

试题详情

题目：

Is the negative number x less than –1?
(1) 1x < 12
(2) 1x2 < 12 

选项:

A、Aif statement (1) ALONE is sufficient to answer the question but statement (2) alone is not sufficient;
B、Bif statement (2) ALONE is sufficient to answer the question but statement (1) alone is not sufficient;
C、Cif the two statements TAKEN TOGETHER are sufficient to answer the question, but NEITHER statement ALONE is sufficient;
D、Dif EACH statement ALONE is sufficient to answer the question;
E、Eif the two statements TAKEN TOGETHER are still NOT sufficient to answer the question.

答案:

B
1答疑

[Reading Comprehension]

登录查看答疑

试题详情

文章：

Line         In terrestrial environments, gravity places
  special demands on the cardiovascular systems of
  animals. Gravitational pressure can cause blood to
  pool in the lower regions of the body, making it
(5) difficult to circulate blood to critical organs such as
  the brain. Terrestrial snakes, in particular, exhibit
  adaptations that aid in circulating blood against the
  force of gravity.
       The problem confronting terrestrial snakes is best
(10) illustrated by what happens to sea snakes when
  removed from their supportive medium. Because the
  vertical pressure gradients within the blood vessels
  are counteracted by similar pressure gradients in
  the surrounding water, the distribution of blood
(15) throughout the body of sea snakes remains about
  the same regardless of their orientation in space,
  provided they remain in the ocean. When removed
  from the water and tilted at various angles with the
  head up, however, blood pressure at their midpoint
(20) drops significantly, and at brain level falls to zero.
  That many terrestrial snakes in similar spatial
  orientations do not experience this kind of circulatory
  failure suggests that certain adaptations enable them
  to regulate blood pressure more effectively in those
(25) orientations.
       One such adaptation is the closer proximity of
  the terrestrial snake’s heart to its head, which helps
  to ensure circulation to the brain, regardless of the
  snake’s orientation in space. The heart of sea snakes
(30) can be located near the middle of the body, a
  position that minimizes the work entailed in
  circulating blood to both extremities. In arboreal
  snakes, however, which dwell in trees and often
  assume a vertical posture, the average distance
(35) from the heart to the head can be as little as
  15 percent of overall body length. Such a location
  requires that blood circulated to the tail of the
  snake travel a greater distance back to the heart,
  a problem solved by another adaptation. When
(40) climbing, arboreal snakes often pause
  momentarily to wiggle their bodies, causing waves
  of muscle contraction that advance from the lower
  torso to the head. By compressing the veins and
  forcing blood forward, these contractions
(45) apparently improve the flow of venous blood
  returning to the heart.


题目：

The author suggests that which of the following is a disadvantage that results from the location of a snake’s heart in close proximity to its head?

选项:

A、A decrease in the efficiency with which the snake regulates the flow of blood to the brain
B、A decrease in the number of orientations in space that a snake can assume without loss of blood flow to the brain
C、A decrease in blood pressure at the snake’s midpoint when it is tilted at various angles with its head up
D、An increase in the tendency of blood to pool at the snake’s head when the snake is tilted at various angles with its head down
E、An increase in the amount of effort required to distribute blood to and from the snake’s tail

答案:

E
1答疑

[Problem Solving]

登录查看答疑

试题详情

题目：

If a two-digit positive integer has its digits reversed, the resulting integer differs from the original by 27. By how much do the two digits differ?

选项:

A、3
B、4
C、5
D、6
E、7

答案:

A
1答疑

[Sentence Correction]

登录查看答疑

试题详情

题目：

Judge Bonham denied a motion to allow members of the jury to go home at the end of each day instead of to confine them to a hotel.

选项:

A、to allow members of the jury to go home at the end of each day instead of to confine them tothat would have allowed members of the jury to go home at the end of each day instead of confined to
B、under which members of the jury are allowed to go home at the end of each day instead of confining them in
C、that would allow members of the jury to go home at the end of each day rather than confinement in
D、to allow members of the jury to go home at the end of each day rather than be confined to

答案:

E
1答疑

[Data Sufficiency]

登录查看答疑

试题详情

题目：

What is the volume of the cube above?
(1)   The surface area of the cube is 600 square inches.
(2) The length of diagonal AB is  inches.

选项:

答案:

D
1答疑

[Reading Comprehension]

登录查看答疑

试题详情

文章：

Line         Jacob Burckhardt’s view that Renaissance
  European women “stood on a footing of perfect
  equality” with Renaissance men has been repeatedly
  cited by feminist scholars as a prelude to their
(5) presentation of rich historical evidence of women’s
  inequality. In striking contrast to Burckhardt, Joan
  Kelly in her famous 1977 essay, “Did Women Have
  a Renaissance?” argued that the Renaissance was
  a period of economic and social decline for women
(10) relative both to Renaissance men and to medieval
  women. Recently, however, a significant trend
  among feminist scholars has entailed a rejection
  of both Kelly’s dark vision of the Renaissance and
  Burckhardt’s rosy one. Many recent works by these
(15) scholars stress the ways in which differences
  among Renaissance women—especially in terms
  of social status and religion—work to complicate
  the kinds of generalizations both Burckhardt and
  Kelly made on the basis of their observations about
(20) upper-class Italian women.
       The trend is also evident, however, in works
  focusing on those middle- and upper-class
  European women whose ability to write gives them
  disproportionate representation in the historical
(25) record. Such women were, simply by virtue of
  their literacy, members of a tiny minority of the
  population, so it is risky to take their descriptions of
  their experiences as typical of “female experience”
  in any general sense. Tina Krontiris, for example, in
(30) her fascinating study of six Renaissance women
  writers, does tend at times to conflate “women” and
  “women writers,” assuming that women’s gender,
  irrespective of other social differences, including
  literacy, allows us to view women as a homogeneous
(35) social group and make that group an object of
  analysis. Nonetheless, Krontiris makes a significant
  contribution to the field and is representative of
  those authors who offer what might be called a
  cautiously optimistic assessment of Renaissance
(40) women’s achievements, although she also stresses
  the social obstacles Renaissance women faced
  when they sought to raise their “oppositional
  voices.” Krontiris is concerned to show women
  intentionally negotiating some power for themselves
(45) (at least in the realm of public discourse) against
  potentially constraining ideologies, but in her sober
  and thoughtful concluding remarks, she suggests
  that such verbal opposition to cultural stereotypes
  was highly circumscribed; women seldom attacked
(50) the basic assumptions in the ideologies that
  oppressed them.


题目：

According to the passage, feminist scholars cite Burckhardt’s view of Renaissance women primarily for which of the following reasons?

选项:

A、Burckhardt’s view forms the basis for most arguments refuting Kelly’s point of view.
B、Burckhardt’s view has been discredited by Kelly.
C、Burckhardt’s view is one that many feminist scholars wish to refute.
D、Burckhardt’s work provides rich historical evidence of inequality between Renaissance women and men.
E、Burckhardt’s work includes historical research supporting the arguments of the feminist scholars.

答案:

C
1答疑

[Sentence Correction]

登录查看答疑

试题详情

题目：

A new hair-growing drug is being sold for three times the price, per milligram, as the drug's maker charges for another product with the same active ingredient.

选项:

A、as
B、than
C、that
D、of what
E、at which

答案:

C
1答疑

[Problem Solving]

登录查看答疑

试题详情

题目：

Drum X is  full of oil and Drum Y, which has twice the capacity of Drum X, is  full of oil. If all of the oil in Drum X is poured into Drum Y, then Drum Y will be filled to what fraction of its capacity?

选项:

A、
B、
C、
D、

答案:

C
1答疑

[Sentence Correction]

登录查看答疑

试题详情

题目：

Early administrative decisions in China's Ming Dynasty eventually caused a drastic fall in tax revenues, a reduction in military preparedness, the collapse of the currency system, and failed to make sufficient investment in vital transportation infrastructure.

选项:

答案:

E
1答疑

[Critical Reasoning]

登录查看答疑

试题详情

文章：

A study of marital relationships in which one partner's sleeping and waking cycles differ from those of the other partner reveals that such couples share fewer activities with each other and have more violent arguments than do couples in a relationship in which both partners follow the same sleeping and waking patterns. Thus, mismatched sleeping and waking cycles can seriously jeopardize a marriage.

题目：

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

选项:

A、Married couples in which both spouses follow the same sleeping and waking patterns also occasionally have arguments than can jeopardize the couple's marriage.The sleeping and waking cycles of individuals tend to vary from season to season. 
B、The individuals who have sleeping and waking cycles that differ significantly from those of their spouses tend to argue little with colleagues at work.
C、People in unhappy marriages have been found to express hostility by adopting a different sleeping and waking cycle from that of their spouses
D、According to a recent study, most people's sleeping and waking cycles can be controlled and modified easily.

答案:

D
0评分
1159浏览

[Undefined]

登录查看答疑
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
3310浏览

[Undefined]

登录查看答疑
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
3655浏览

[Undefined]

登录查看答疑
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
1220浏览

[Undefined]

登录查看答疑
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
2792浏览

[GWD]

登录查看答疑
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
1908浏览

[OG]

登录查看答疑
The primary purpose of the passage is to
为什么选E不选B
0评分
1229浏览

[Undefined]

登录查看答疑
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
1292浏览

[Undefined]

登录查看答疑
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
305794浏览

[Undefined]

登录查看答疑
Analytical!
请问may老师，这题该用什么思路来做？
0评分
312920浏览

[Undefined]

登录查看答疑
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
点我领取
免费专项课程
 在线咨询