问答

1答疑

[Reading Comprehension]

登录查看答疑

试题详情

文章：

Line         Ecoefficiency (measures to minimize environmental
  impact through the reduction or elimination of waste
  from production processes) has become a goal for
  companies worldwide, with many realizing significant
(5) cost savings from such innovations. Peter Senge and
  Goran Carstedt see this development as laudable
  but suggest that simply adopting ecoefficiency
  innovations could actually worsen environmental
  stresses in the future. Such innovations reduce
(10) production waste but do not alter the number of
  products manufactured nor the waste generated
  from their use and discard; indeed, most companies
  invest in ecoefficiency improvements in order to
  increase profits and growth. Moreover, there is no
(15) guarantee that increased economic growth from
  ecoefficiency will come in similarly ecoefficient
  ways, since in today’s global markets, greater profits
  may be turned into investment capital that could easily
  be reinvested in old-style eco-inefficient industries.
(20) Even a vastly more ecoefficient industrial system
  could, were it to grow much larger, generate more
  total waste and destroy more habitat and species
  than would a smaller, less ecoefficient economy.
  Senge and Carstedt argue that to preserve the global
(25) environment and sustain economic growth,
  businesses must develop a new systemic approach
  that reduces total material use and total accumulated
  waste. Focusing exclusively on ecoefficiency, which
  offers a compelling business case according to
(30) established thinking, may distract companies from
  pursuing radically different products and business
  models.


题目：

The passage mentions which of the following as a possible consequence of companies’ realization of greater profits through ecoefficiency?

选项:

A、The companies may be able to sell a greater number of products by lowering prices.
B、The companies may be better able to attract investment capital in the global market.
C、The profits may be reinvested to increase economic growth through ecoefficiency.
D、The profits may be used as investment capital for industries that are not ecoefficient.
E、The profits may encourage companies to make further innovations in reducing production waste.

答案:

D
1答疑

[Critical Reasoning]

登录查看答疑

试题详情

题目：

Giselle: The government needs to ensure that the public consumes less petroleum. When things cost more, people buy and use less of them. Therefore, the government should raise the sales tax on gasoline, a major petroleum product.
Antoine: The government should not raise the sales tax on gasoline. Such an increase would be unfair to gasoline users. If taxes are to be increased, the increases should be applied in such a way that they spread the burden of providing the government with increased revenues among many people, not just the users of gasoline.
As a rebuttal of Giselle’s argument, Antoine’s response is ineffective because

选项:

A、A. he ignores the fact that Giselle does not base her argument for raising the gasoline sales tax on the government's need for increased revenues
B、B. he fails to specify how many taxpayers there are who are not gasoline users
C、C. his conclusion is based on an assertion regarding unfairness, and unfairness is a very subjective concept
D、D. he mistakenly assumes that Giselle wants a sales tax increase only on gasoline
E、E. he makes the implausible assumption that the burden of increasing government revenues can be more evenly distributed among the people through other means besides increasing the gasoline sales tax

答案:

A
1答疑

[Sentence Correction]

登录查看答疑

试题详情

题目：

Introduced by Italian merchants resident in London during the sixteenth century, in England life insurance remained until the end of the seventeenth century a specialized contract between individual underwriters and their clients. typically being ship owners, overseas merchants, or professional moneylenders.

选项:

A、in England life insurance remained until the end of the seventeenth century a specialized contract between individual underwiters and their clients, typically being
B、in England life insurance had remained until the end of the seventeenth century a specialized contract between individual underwriters with their clients, who typically were
C、until the end of the seventeenth century life insurance in England had remained a specialized contract between individual underwiters and their clients, typically
D、life insurance in England remained until the end of the seventeenth century a specialized contract between individual underwiters and their clients, typically
E、life insurance remained until the end of the seventeenth century in England a specialized contract between individual underwriters with their clients, who typically were

答案:

D
1答疑

[Critical Reasoning]

登录查看答疑

试题详情

题目：

Many industrialized nations are trying to reduce atmospheric concentrations of carbon dioxide, a gas released by the burning of fossil fuels. One proposal is to replace conventional cement, which is made with calcium carbonate, by a new “eco-cement.” This new cement, made with magnesium carbonate, absorbs large amounts of carbon dioxide when exposed to the atmosphere. Therefore, using eco-cement for new concrete building projects will significantly help reduce atmospheric concentrations of carbon dioxide.

Which of the following, if true, most strengthens the argument?

选项:

A、The cost of magnesium carbonate, currently greater than the cost of calcium carbonate, probably will fall as more magnesium carbonate is used in cement manufacture.
B、Eco-cement is strengthened when absorbed carbon dioxide reacts with the cement.
C、Before the development of eco-cement, magnesium-based cement was considered too susceptible to water erosion to be of practical use.
D、The manufacture of eco-cement uses considerably less fossil fuel per unit of cement than the manufacture of conventional cement does.
E、Most building-industry groups are unaware of the development or availability of eco-cement.

答案:

D
1答疑

[Reading Comprehension]

登录查看答疑

试题详情

文章：

Line         Io and Europa, the inner two of Jupiter’s four
  largest moons, are about the size of Earth’s moon
  and are composed mostly or entirely of rock and
  metal. Ganymede and Callisto are larger and roughly
(5) half ice. Thus, these four moons are somewhat
  analogous to the planets of the solar system, in which
  the rock- and metal-rich inner planets are distinct
  from the much larger gas- and ice-rich outer planets.
  Jupiter’s moons are, however, more “systematic”:
(10) many of their properties vary continuously with
  distance from Jupiter. For example, Io is ice-free,
  Europa has a surface shell of ice, and while
  Ganymede and Callisto are both ice-rich, outermost
  Callisto has more.
(15)      This compositional gradient has geological
  parallels. Io is extremely geologically active, Europa
  seems to be active on a more modest scale, and
  Ganymede has undergone bouts of activity in its
  geological past. Only Callisto reveals no geological
(20) activity. In similar fashion, Callisto’s surface is very
  heavily cratered from the impact of comets and
  asteroids; Ganymede, like Earth’s moon, is heavily
  cratered in parts; Europa is very lightly cratered; and
  no craters have been detected on Io, even though
(25) Jupiter’s gravity attracts comets and asteroids
  passing near it, substantially increasing the
  bombardment rate of the inner moons compared
  to that of the outer ones. But because of Io’s high
  degree of geological activity, its surface undergoes
(30) more-or-less continuous volcanic resurfacing.


题目：

The author’s reference to Jupiter’s gravity in line 25 serves primarily to

选项:

A、indicate why the absence of craters on Io’s surface is surprising
B、explain the presence of craters on the surface of Jupiter’s four largest moons
C、provide an explanation for the lack of geological activity on Callisto
D、contrast Jupiter’s characteristics with the characteristics of its four largest moons
E、illustrate the similarity between Jupiter’s four largest moons and the planets of the solar system

答案:

A
1答疑

[Graphics Interpretation]

登录查看答疑

试题详情

题目：

In Country C, the number of transactions made by various noncash methods in 2006 and 2009 are shown in the graphic. All other transactions were made with cash.

Use the drop-down menus to complete the following statements about Country C so that they are consistent with the given information.

选项:

The number of transactions increased by 25% from 2006 to 2009.

If the total value of all credit card transactions in 2009 was 10% more than the total value of all credit card transactions in 2006, then the average (arithmetic mean) value of credit card transactions increased by % from 2006 to 2009.

答案:

B C
1答疑

[Graphics Interpretation]

登录查看答疑

试题详情

题目：

 The graph shows the effect of voters' previously stated preferenceregarding the issue of working-time reduction on the probability ofthose voters' actual choice being the same as that stated preference.
Using the drop-down menus, fill in the blanks to make the mostaccurate statements based on the graph.

选项:

Members of the party are most apt to vote according to their previously stated preference regarding the issue ofworking-time reduction.

Members of the party are most apt to vote against the issue of working-time reduction if their previously statedpreference regarding the issue of working-time reduction was also against.

答案:

A D
1答疑

[Critical Reasoning]

登录查看答疑

试题详情

题目：

A physically active lifestyle has been shown to help increase longevity. In the Wistar region of Bellaria, the average age at death is considerably higher than in any other part of the country. Wistar is the only mountainous part of Bellaria. A mountainous terrain makes even such basic activities as walking relatively strenuous; it essentially imposes a physically active lifestyle on people. Clearly, this circumstance explains the long lives of people in Wistar.

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

选项:

A、In Bellaria all medical expenses are paid by the government, so that personal income does not affect the quality of health care a person receives.
B、The Wistar region is one of Bellaria’s least populated regions.
C、Many people who live in the Wistar region have moved there in middle age or upon retirement.
D、The many opportunities for hiking, skiing, and other outdoor activities that Wistar’s mountains offer make it a favorite destination for vacationing Bellarians.
E、Per capita spending on recreational activities is no higher in Wistar than it is in other regions of Bellaria.

答案:

C
1答疑

[Problem Solving]

登录查看答疑

试题详情

题目：

A certain fruit stand sold apples for $0.70 each and bananas for $0.50 each. If a customer purchased both apples and bananas from the stand for a total of $6.30, what total number of apples and bananas did the customer purchase?

选项:

A、10
B、11
C、12
D、13
E、14

答案:

B
1答疑

[Critical Reasoning]

登录查看答疑

试题详情

题目：

The interview is an essential part of a successful hiring program because, with it, job applicants who have personalities that are unsuited to the requirements of the job will be eliminated from consideration.

The argument above logically depends on which of the following assumptions?

选项:

答案:

C
0评分
1157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
3304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
3646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
1214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
2786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
1903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
1224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
1289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
305196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
312322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