问答

2答疑

[Sentence Correction]

登录查看答疑

试题详情

题目：

Growing evidence that coastal erosion occurs continuously, not in just such calamitous bursts like hurricanes, has led scientists and planners to urge a stringent new approach to limiting development along the nation's shoreline.

选项:

A、coastal erosion occurs continuously, not in just such calamitous bursts like hurricanes, has
B、coastal erosion occurs continuously, not just in calamitous bursts such as hurricanes, has
C、coastal erosion is continuously occurring, not in just calamitous bursts like hurricanes, having
D、there is continuous coastal erosion, not just in calamitous bursts such as hurricanes, which has
E、there is continuous coastal erosion occurring, not in just such calamitous bursts like hurricanes, has

答案:

B
2答疑

[Problem Solving]

登录查看答疑

试题详情

题目：

 
For the cube shown above, what is the degree measure of PQR ? 
PQR?

选项:

A、30
B、45
C、60
D、75
E、90

答案:

C
2答疑

[Sentence Correction]

登录查看答疑

试题详情

题目：

Although unhappy with the high rent her company was paying for its suburban office building, the chief executive recognized rental rates for buildings in the suburbs as far lower than it typically is for property that is located within the city limits.

选项:

A、rental rates for buildings in the suburbs as far lower than it typically is for property that is located within the city limits 
B、rental rates for buildings in the suburbs as being far lower than what the rates typically charged within the city limits had been for property located there 
C、rental rates typically being charged for property located within the city limits to be far lower as they typically were within the city limits for the property there 
D、that rental rates for buildings in the suburbs were far lower than rental rates typically being charged within the city limits for property located there 
E、that rental rates for buildings in the suburbs were far lower than those typically charged for property located within the city limits

答案:

E
2答疑

[Data Sufficiency]

登录查看答疑

试题详情

题目：

If x(x - 5)(x + 2) = 0, is x negative?
(1)     x2- 7x ≠ 0
(2)     x2-2x -15 ≠ 0
ⰾ

选项:

答案:

C
2答疑

[Data Sufficiency]

登录查看答疑

试题详情

题目：

During a 10-week summer vacation, was the average (arithmetic mean) number of books that Carolyn read per week greater than the average number of books that Jacob read per week?
(1)   Twice the average number of books that Carolyn read per week was greater than 5 less than twice the average number of books that Jacob read per week.
(2)   During the last 5 weeks of the vacation, Carolyn read a total of 3 books more than Jacob.

选项:

答案:

E
2答疑

[Sentence Correction]

登录查看答疑

试题详情

题目：

Of all the vast tides of migration that have swept through history, maybe none is more concentrated as the wave that brought 12 million immigrants onto American shores in little more than three decades.

选项:

A、maybe none is more concentrated as
B、it may be that none is more concentrated as
C、perhaps it is none that is more concentrated than
D、maybe it is none that was more concentrated than
E、perhaps none was more concentrated than

答案:

E
2答疑

[Sentence Correction]

登录查看答疑

试题详情

题目：

Despite its covering the entire planet, Earth has a crust that is not seamless or stationary, rather it is fragmented into mobile semirigid plates.

选项:

A、Despite its covering the entire planet, Earth has a crust that is not seamless or stationary, rather it is
B、Despite the fact that it covers the entire planet, Earth’s crust is neither seamless nor is it stationary, but is
C、Despite covering the entire planet, Earth’s crust is neither seamless nor is it stationary, but rather
D、Although it covers the entire planet, Earth’s crust is neither seamless nor stationary, but rather
E、Although covering the entire planet, Earth has a crust that is not seamless or stationary, but

答案:

D
2答疑

[Critical Reasoning]

登录查看答疑

试题详情

题目：

When hypnotized subjects are told that they are deaf and are then asked whether they can hear the hypnotist, they reply, "No." Some theorists try to explain this result by arguing that the selves of hypnotized subjects are dissociated into separate parts, and that the part that is deaf is dissociated from the part that replies.

Which of the following challenges indicates the most serious weakness in the attempted explanation described above?

选项:

A、Why does the part that replies not answer, 'Yes'?
B、Why are the observed facts in need of any special explanation?
C、Why do the subjects appear to accept the hypnotist's suggestion that they are deaf?
D、Why do hypnotized subjects all respond the same way in the situation described?
E、Why are the separate parts of the self the same for all subjects?

答案:

A
2答疑

[Reading Comprehension]

登录查看答疑

试题详情

文章：

Line         During the 1980s, many economic historians
  studying Latin America focused on the impact of
  the Great Depression of the 1930s. Most of these
  historians argued that although the Depression
(5) began earlier in Latin America than in the United
  States, it was less severe in Latin America and did
  not significantly impede industrial growth there.
  The historians’ argument was grounded in national
  government records concerning tax revenues and
(10) exports and in government-sponsored industrial
  censuses, from which historians have drawn
  conclusions about total manufacturing output
  and profit levels across Latin America. However,
  economic statistics published by Latin American
(15) governments in the early twentieth century are
  neither reliable nor consistent; this is especially
  true of manufacturing data, which were gathered
  from factory owners for taxation purposes and
  which therefore may well be distorted. Moreover,
(20) one cannot assume a direct correlation between
  the output level and the profit level of a given
  industry as these variables often move in opposite
  directions. Finally, national and regional economies
  are composed of individual firms and industries,
(25) and relying on general, sweeping economic
  indicators may mask substantial variations among
  these different enterprises. For example, recent
  analyses of previously unexamined data on textile
  manufacturing in Brazil and Mexico suggest that the
(30) Great Depression had a more severe impact on this
  Latin American industry than scholars
  had recognized.


题目：

Which of the following conclusions about the Great Depression is best supported by the passage?

选项:

A、It did not impede Latin American industrial growth as much as historians had previously thought.
B、It had a more severe impact on the Brazilian and the Mexican textile industries than it had on Latin America as a region.
C、It affected the Latin American textile industry more severely than it did any other industry in Latin America.
D、The overall impact on Latin American industrial growth should be reevaluated by economic historians.
E、Its impact on Latin America should not be compared with its impact on the United States.

答案:

D
2答疑

[Critical Reasoning]

登录查看答疑

试题详情

题目：

During the earliest period of industrialization in Britain, steam engines were more expensive to build and operate than either windmills or water mills, the other practicable sources of power for factories. Yet despite their significant cost disadvantage, steam-powered factories were built in large numbers well before technical improvements brought their cost down. Furthermore, they were built even in regions where geographical conditions permitted the construction of wind- and water-powered factories close to major markets.

Which of the following, if true, most helps to explain the proliferation of steam-powered factories during the earliest period of industrialization in Britain?

选项:

A、In many areas of Britain, there were fewer steam-powered factories than wind- or water-powered factories in the earliest period of industrialization.
B、Unlike wind- or water-powered factories, steam-powered factories were fueled with coal, which sometimes had to be transported significant distances from the mine to the site of the factory.
C、It was both difficult and expensive to convert a factory from wind power or water power to steam power.
D、In the early period of industrialization, many goods sold in towns and cities could not be mass-produced in factories.
E、In Britain, the number of sites where a wind- or water-powered factory could be built was insufficient to provide for all of the demand for factory-produced goods at the time.

答案:

E
0评分
416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
1441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
1612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
618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
1423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
1005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
670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
689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
159846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
166955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