问答

1答疑

[Sentence Correction]

试题详情

题目:

Hydrocarbons, with which fruit flies perfume themselves in species-specific blends, are known to be important in courtship, and apparently this assists flies that taste the hydrocarbons on prospective mates to distinguish their own species from that of others

选项:

A、and apparently this assists flies that taste the hydrocarbons on prospective mates to distinguish their own species from that of
B、 and apparently this assists flies when they taste the hydrocarbons on prospective mates in distinguishing their own species from those of
C、 which apparently assists flies that taste the hydrocarbons on prospective mates in being able to distinguish their own species from
D、 apparently assisting flies to taste the hydrocarbons on prospective mates to distinguish their own species from those of
E、 apparently assisting flies that taste the hydrocarbons on prospective mates in distinguishing their own species from

答案:

E
1答疑

[Problem Solving]

试题详情

题目:

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?

选项:

A、1
B、2
C、3
D、4
E、5

答案:

E
1答疑

[Data Sufficiency]

试题详情

题目:

If each of the 8 employees working on a certain project received an award, was the amount of each award the same?
(1)   The standard deviation of the amounts of the 8 awards was 0.
(2)   The total amount of the 8 awards was $10,000.

选项:

答案:

A
1答疑

[Problem Solving]

试题详情

题目:

If = 8,100, what is the value of ?

选项:

A、90
B、30
C、10
D、10/3
E、10/9

答案:

D
1答疑

[Data Sufficiency]

试题详情

题目:

Is xy > x2y2?
(1)     14x2 = 3
(2)     y2 = 1

选项:

答案:

E
1答疑

[Reading Comprehension]

试题详情

文章:

    Many managers are influenced by dangerous myths about pay that lead to counterproductive decisions about how their companies compensate employees. One such myth is that labor rates, the rate per hour paid to workers, are identical with labor costs, the money spent on labor in relation to the productivity of the labor force. This myth leads to the assumption that a company can simply lower its laborcosts by cutting wages. But labor costs and labor rates are not in fact the same: one company could pay its workers considerably more than another and yet have lower labor costs if that company's productivity were higher due to the talent of its workforce, the efficiency of its work processes, or other factors. The confusion of costs with rates persists partly because labor rates are a convenient target for managers who want to make an impact on their company's budgets. Because labor rates are highly visible, managers can easily compare their company's rates with those of competitors. Furthermore, labor rates often appear to be a company's most malleable financial variable: cutting wages appears an easier way to control costs than such options as reconfiguring work processes or altering product design.

    The myth that labor rates and labor costs are equivalent is supported by business journalists, who frequently confound the two. For example, prominent business journals often remark on the "high" cost of German labor, citing as evidence the average amount paid to German workers. The myth is also perpetuated by the compensation-consulting industry, which has its own incentives to keep such myths alive. First, although some of these consulting firms have recently broadened their practices beyond the area of compensation, their mainstay continues to be advising companies on changing their compensation practices. Suggesting that a company's performance can be improved in some other way than by altering its pay system may be empirically correct but contrary to the consultants' interests. Furthermore, changes to the compensation system may appear to be simpler to implement than changes to other aspects of an organization, so managers are more likely to find such advice from consultants palatable. Finally, to the extant that changes in compensation create new problems, the consultants will continue to have work solving the problems that result from their advice.

题目:

The passage suggests that the "myth" mentioned in the highlighted text persists partly because

选项:

A、managers find it easier to compare their companies' labor rates with those of competitors than to compare labor costs
B、managers tend to assume that labor rates affect their companies' budgets less than they actually do
C、managers tend to believe that labor rates can have an impact on the efficiency of their companies' work processes
D、the average amount paid to workers differs significantly from one country to another
E、many companies fail to rely on compensation consultants when making decisions about labor rates

答案:

A
1答疑

[Reading Comprehension]

试题详情

文章:

    Acting on the recommendation of a British government committee investigating the high incidence in white lead factories of illness among employees, most of whom were women, the Home Secretary proposed in 1895 that Parliament enact legislation that would prohibit women from holding most jobs in white lead factories. Although the Women's Industrial Defence Committee (WIDC), formed in 1892 in response to earlier legislative attempts to restrict women's labor, did not discount the white lead trade's potential health dangers, it opposed the proposal, viewing it as yet another instance f limiting women's work opportunities. Also opposing the proposal was the Society for Promoting the Employment of Women (SPEW), which attempted to challenge it by investigating the causes of illness in white lead factories. SPEW contended, and WIDC concurred, that controllable conditions in such factories were responsible for the development of lead poisoning. SPEW provided convincing evidence that lead poisoning could be avoided if workers were careful and clean and if already extant workplace safety regulations were stringently enforced. However, the Women's Trade Union League (WTUL), which had ceased in the late 1880's to oppose restrictions on women's labor, supported the eventually enacted proposal, in part because safety regulations were generally not being enforced in white lead factories, where there were no unions (and little prospect of any) to pressure employers to comply with safety regulations.

题目:

Which of the following, if true, would most clearly support the contention attributed to SPEW in the highlighted text?

选项:

A、Those white lead factories that most strongly enforced regulations concerning worker safety and hygiene had the lowest incidences of lead poisoning among employees.
B、The incidence of lead poisoning was much higher among women who worked in white lead factories than among women who worked in other types of factories.
C、There were many household sources of lead that could have contributed to the incidence of lead poisoning among women who also worked outside the home in the late nineteenth century.
D、White lead factories were more stringent than were certain other types of factories in their enforcement of workplace safety regulations.
E、Even brief exposure to the conditions typically found in white lead factories could cause lead poisoning among factory workers.

答案:

A
1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:

According to the passage, which of the following may account for the inconsistency between the general density dependence model and the evidence provided by certain studies of foundings?

选项:

A、Such studies have overemphasized the impact of preexisting firms on the establishment of new firms.
B、Such studies have not focused strongly enough on the role of competition among newly established firms operating at the city and state levels.
C、Such studies fail to differentiate among specialist firms with regard to the degree to which they deviate from familiar forms of organization.
D、Such studies have not taken into account the fact that many industries are internationally integrated.
E、Such studies have neglected to investigate firms that attempt to serve only a narrow target market.

答案:

D
1答疑

[Sentence Correction]

试题详情

题目:

Scientific evidence suggests that the benefits arising from consumption of alcohol are greatest with alcohol that is taken with meals on a moderate, regular basis than when it is consumed on binges.

选项:

A、with alcohol that is taken with meals on a moderate, regular basis than when it is consumed
B、with taking alcohol with meals on a moderate, regular basis as opposed to its consumption
C、when alcohol is taken with meals on a moderate, regular basis, rather than consuming it
D、when alcohol is taken with meals on a moderate, regular basis rather than consumed
E、 when alcohol, taken with meals on a moderate, regular basis, and not consumed

答案:

D
1答疑

[Critical Reasoning]

试题详情

题目:

Heavy snow fall in the Sierra Nevada Mountains is usually preceded by subzero temperatures in northwestern Canada. When snow fall is high in Canada’s northwestern provinces, the same storm typically produces heavy snows in the Sierra Nevadas. Therefore, subzero temperatures cause winter snow storms to rebuild as they move down from Canada to the Sierra Nevadas.
Which selection contains the same type flaw as that contained in the passage above?

选项:

A、A. Professional golfers tend to have lean builds. Therefore, professional golfers typically have healthy eating habits.
B、B. People tend to write larger when they use wide-ruled notebook paper than when they use narrow-ruled paper. Therefore, people write more neatly on the wide-ruled paper.
C、C. Students who participate in debate in high school often end up as trial lawyers. Therefore, participating in high school debate must somehow influence students to attend law school.
D、D. During the hottest part of the day, song birds do not visit unshaded feeders. Therefore, song birds must visit the feeders before dawn.
E、E. The kind of shows on Broadway can impact the type of shows premiered during new television seasons. Therefore, if the new Broadway shows feature aliens as characters in their productions, then the new television shows will also feature alien characters.

答案:

C
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322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
1258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
1435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
555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
1304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
929浏览

[OG]

The primary purpose of the passage is to
为什么选E不选B
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623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
629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
148958浏览

[Undefined]

Analytical!
请问may老师,这题该用什么思路来做?
0评分
156066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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