问答

6答疑

[Sentence Correction]

试题详情

题目:

Until a few centuries ago, any large bones discovered in the fields or caves of Europe, now known to be large prehistoric animals, were usually assumed to be the remains of giants and were often displayed as curiosities in castles, palaces, town halls, churches, and monasteries.

选项:

A、now known to be large prehistoric animals, were usually assumed to be
B、presently known as from large prehistoric animals, were usually assumed as
C、bones now known to be those of large prehistoric animals, were usually assumed to be
D、bones known at present as of large prehistoric animals, were usually assumed as those of
E、currently known as those of large prehistoric animals, were usually assumed to be those of

答案:

C
6答疑

[Sentence Correction]

试题详情

题目:

Hans Christian Andersen wrote fairy tales, which have been some of the most frequently translated works in literary history, while he wrote plays, novels, poems, and travel books, as well as several autobiographies, which remained almost unknown outside his native Denmark.
 

选项:

A、 Hans Christian Andersen wrote fairy tales, which have been some of the most frequently translated works in literary history, while he wrote plays, novels, poems, and travel books, as well as several autobiographies, which remained
B、 Hans Christian Andersen wrote fairy tales, which, while among the most frequently translated works in literary history, his plays, novels, poems, and travel books, as well as several autobiographies remain
C、 Even as Hans Christian Andersen's fairy tales have been among the most frequently translated works in literary history, still his plays, novels, poems, and travel books, as well as several autobiographies, remain
D、 Unlike the fairy tales written by Hans Christian Andersen, which are some of the most frequently translated works in literary history, he wrote plays, novels, poems, and travel books, as well as several autobiographies, which remained
E、 Although Hans Christian Andersen wrote fairy tales that are among the most frequently translated works in literary history, his plays, novels, poems, and travel books, as well as several autobiographies, remain

答案:

E
6答疑

[Reading Comprehension]

试题详情

文章:

The general density dependence model can be applied to explain the founding of specialist firms (those attempting to serve a narrow target market).  According to this model, specialist foundings hinge on the interplay between legitimation and competitive forces, both of which are functions of the density (total number) of firms in a particular specialist population.  Legitimation occurs as a new type of firm moves from being viewed as unfamiliar to being viewed as a natural way to organize.  At low density levels, each founding increases legitimation, reducing barriers to entry and easing subsequent foundings.  Competition occurs because the resources that firms seek--customers, suppliers, and employees--are limited, but as long as density is low relative to plentiful resources, the addition of another firm has a negligible impact on the intensity of competition.  At high density levels, however, competitive effects outweigh legitimation effects, discouraging foundings.  The more numerous the competitors, the fiercer the competition will be and the smaller will be the incentive for new firms to enter the field.
 
While several studies have found a significant correspondence between the density dependence model and actual patterns of foundings, other studies have found patterns not consistent with the model.  A possible explanation for this inconsistency is that legitimation and competitive forces transcend national boundaries, while studies typically restrict their analysis to the national level.  Thus a national-level analysis can understate the true legitimation and competitive forces as well as the number of foundings in an industry that is internationally integrated.  Many industries are or are becoming international, and since media and information easily cross national borders, so should legitimation and its effects on overseas foundings.  For example, if a type of firm becomes established in the United States, that information transcends borders, reduces uncertainties, and helps foundings of that type of firm in other countries.  Even within national contexts, studies have found more support for the density dependence model when they employ broader geographic units of analysis--for example, finding that the model's operation is seen more clearly at the state and national levels than at city levels.

题目:

The primary purpose of the passage is to

选项:

A、question the validity of an economic model
B、point out some inconsistencies within an economic model
C、outline an economic model and suggest revisions to it
D、describe an economic model and provide specific examples to illustrate its use
E、explain why an economic model remains valid despite inconsistent research results

答案:

E
6答疑

[Critical Reasoning]

试题详情

题目:

Debater: The average amount of overtime per month worked by an employee in the manufacturing division of the Haglut Corporation is 14 hours. Most employees of the Haglut Corporation work in the manufacturing division. Furthermore, the average amount of overtime per month worked by any employee in the company generally does not fluctuate much from month to month. Therefore, each month, most employees of the Haglut Corporation almost certainly work at least some overtime.

The debater's argument is most vulnerable to criticism on which of these grounds?

选项:

A、It takes for granted that the manufacturing division is a typical division of the corporation with regard to the average amount of overtime its employees work each month.
B、It takes for granted that if a certain average amount of overtime is worked each month by each employee of the Haglut Corporation, then approximately the same amount of overtime must be worked each month by each employee of the manufacturing division.
C、It confuses a claim from which the argument's conclusion about the Haglut Corporation would necessarily follow with a claim that would follow from the argument's conclusion only with a high degree of probability.
D、It overlooks the possibility that even if, on average, a certain amount of overtime is worked by the members of some group, many members of that group may work no overtime at all.
E、It overlooks the possibility that even if most employees of the corporation work some overtime each month, any one corporate employee may, in some months, work no overtime.

答案:

D
6答疑

[Sentence Correction]

试题详情

题目:

Scientists have recently found evidence that black holes—regions of space in which matter is so concentrated and the pull of gravity so powerful that nothing, not even light, can emerge from them— probably exist at the core of nearly all galaxies and the mass of each black hole is proportional to its host galaxy.

选项:

A、exist at the core of nearly all galaxies and the mass of each black hole is proportional to
B、exist at the core of nearly all galaxies and that the mass of each black hole is proportional to that of
C、exist at the core of nearly all galaxies, and that the mass of each black hole is proportional to
D、exists at the core of nearly all galaxies, and that the mass of each black hole is proportional to that of
E、exists at the core of nearly all galaxies and the mass of each black hole is proportional to that of

答案:

B
6答疑

[Sentence Correction]

试题详情

题目:

Recent findings lend strong support to the theory that a black hole lies at the center of the Milky Way and of many of the 100 billion other galaxies estimated to exist in the universe.

选项:

A、that a black hole lies at the center of the Milky Way and of
B、that a black hole lies at the Milky Way's center and
C、that there is a black hole lying at the Milky Way's center and
D、of a black hole lying at the Milky Way's center and
E、of a black hole that lies at the center of the Milky Way and of

答案:

A
6答疑

[Critical Reasoning]

试题详情

题目:

Which of the following most logically completes the argument given?
 
People in isolated rain-forest communities tend to live on a largely vegetarian diet, and they eat little salt.  Few of them suffer from high blood pressure, and their blood pressure does not tend to increase with age, as is common in industrialized countries.  Such people often do develop high blood pressure when they move to cities and adopt high-salt diets.  Though suggestive, these facts do not establish salt as the culprit in high blood pressure, however, because _____.

选项:

A、genetic factors could account for the lack of increase of blood pressure with age among such people
B、people eating high-salt diets and living from birth in cities in industrialized societies generally have a tendency to have high blood pressure
C、it is possible to have a low-salt diet while living in a city in an industrialized country
D、there are changes in other aspects of diet when such people move to the city
E、salt is a necessity for human life, and death can occur when the body loses too much salt

答案:

D
6答疑

[Reading Comprehension]

试题详情

文章:

    Some historians contend that conditions in the United States during the Second World War gave rise to a dynamic wartime alliance between trade unions and the African American community, an alliance that advanced the cause of civil rights. They conclude that the postwar demise of this vital alliance constituted a lost opportunity for the civil rights movement that followed the war. Other scholars, however, have portrayed organized labor as defending all along the relatively privileged position of White workers relative to African American workers. Clearly, these two perspectives are not easily reconcilable, but the historical reality is not reducible to one or the other. Unions faced a choice between either maintaining the prewar status quo or promoting a more inclusive approach that sought for all members the right to participate in the internal affairs of unions, access to skilled and high-paying positions within the occupational hierarchy, and protection against management's arbitrary authority in the workplace. While union representatives often voiced this inclusive ideal, in practice unions far more often favored entrenched interests. The accelerating development of the civil rights movement following the Second World War exacerbated the unions' dilemma, forcing trade unionists to confront contradictions in their own practices.

题目:

The passage is primarily concerned with

选项:

A、providing a context within which to evaluate opposing viewpoints about a historical phenomenon
B、identifying a flawed assumption underlying one interpretation of a historical phenomenon
C、assessing the merits and weaknesses of a controversial theory about a historical phenomenon
D、discussing the historical importance of the development of a wartime alliance
E、evaluating evidence used to support a particular interpretation of a historical phenomenon

答案:

A
6答疑

[Reading Comprehension]

试题详情

文章:

    In a 1984 book, Claire C. Robertson argued that, before colonialism, age was a more important indicator of status and authority than gender in Ghana and in Africa generally. British colonialism imposed European-style maledominant notions upon more egalitarian local situations to the detriment of women generally, and gender became a defining characteristic that weakened women's power and authority.

    Subsequent research in Kenya convinced Robertson that she had overgeneralized about Africa. Before colonialism, gender was more salient in central Kenya than it was in Ghana, although age was still crucial in determining authority. In contrast with Ghana, where women had traded for hundreds of years and achieved legal majority (not unrelated phenomena), the evidence regarding central Kenya indicated that women were legal minors and were sometimes treated as male property, as were European women at that time. Factors like strong patrilinearity and patrilocality, as well as women's inferior land rights and lesser involvement in trade, made women more dependent on men than was generally the case in Ghana. However, since age apparently remained the overriding principle of social organization in central Kenya, some senior women had much authority. Thus, Robertson revised her hypothesis somewhat, arguing that in determining authority in precolonial Africa age was a primary principle that superseded gender to varying degrees depending on the situation.

题目:

The author of the passage mentions the status of age as a principle of social organization in precolonial central Kenya in the highlighted text most likely in order to

选项:

A、indicate that women's dependence on men in precolonial Kenya was not absolute
B、contrast the situation of senior women to that of less senior women in precolonial Kenyan society
C、differentiate between the status and authority of precolonial Kenyan women and that of precolonial Ghanaian women
D、explain why age superseded gender to a greater extent in precolonial Kenya than it did elsewhere in Africa
E、identify a factor that led Robertson to revise her hypothesis about precolonial Africa

答案:

E
6答疑

[Sentence Correction]

试题详情

题目:

In the seventh century B.C., the Roman alphabet was adapted from the Etruscan alphabet, which in turn had been adapted in the previous century from a western Greek alphabet, which itself had been adapted earlier in the same century from the Phoenician alphabet.

选项:

A、which itself had been adapted earlier
B、adapting itself earlier
C、itself being adapted earlier
D、having been earlier adapted itself
E、earlier itself having been adapted

答案:

A
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351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
408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
312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
680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
587浏览

[OG]

The primary purpose of the passage is to
为什么选E不选B
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392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
406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
87580浏览

[Undefined]

Analytical!
请问may老师,这题该用什么思路来做?
0评分
94660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
1评分
96622浏览

[Undefined]

Analytical!
请问老师,这道题为什么second part是”evidence”? 还有、不确定First part到底是background info还是premise?
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