问答

3答疑

[Critical Reasoning]

登录查看答疑

试题详情

题目：

Guillemots are birds of Arctic regions. They feed on fish that gather beneath thin sheets of floating ice, and they nest on nearby land. Guillemots need 80 consecutive snow-free days in a year to raise their chicks, so until average temperatures in the Arctic began to rise recently, the guillemots’ range was limited to the southernmost Arctic coast. Therefore, if the warming continues, the guillemots’ range will probably be enlarged by being extended northward along the coast.

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

选项:

A、Even if the warming trend continues, there will still be years in which guillemot chicks are killed by an unusually early snow.
B、If the Arctic warming continues, guillemots’ current predators are likely to succeed in extending their own range farther north.
C、Guillemots nest in coastal areas, where temperatures are generally higher than in inland areas.
D、If the Arctic warming continues, much of the thin ice in the southern Arctic will disappear.
E、The fish that guillemots eat are currently preyed on by a wider variety of predators in the southernmost Arctic regions than they are farther north.

答案:

D
3答疑

[Sentence Correction]

登录查看答疑

试题详情

题目：

In 1913, the largely self-taught Indian mathematician Srinivasa Ramanujan mailed 120 of his theorems to three different British mathematicians; only one, G. H. Hardy, recognized the brilliance of these theorems, but thanks to Hardy’s recognition, Ramanujan was eventually elected to the Royal Society of London.

选项:

答案:

A
3答疑

[Data Sufficiency]

登录查看答疑

试题详情

题目：

In the figure above, if x and y are each less than 90 and PS || QR, is the length of segment PQ less than the length of segment SR?
(1) x>y
(2) x + y > 90

选项:

A、Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B、Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C、BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D、EACH statement ALONE is sufficient.
E、Statements (1) and (2) TOGETHER are NOT sufficient.

答案:

A
3答疑

[Critical Reasoning]

登录查看答疑

试题详情

题目：

Wolves generally avoid human settlements.  For this reason, domestic sheep, though essentially easy prey for wolves, are not usually attacked by them.  In Hylantia prior to 1910, farmers nevertheless lost considerable numbers of sheep to wolves each year.  Attributing this to the large number for wolves, in 1910 the government began offering rewards to hunters for killing wolves.  From 1910 to 1915, large numbers of wolves were killed.  Yet wolf attacks on sheep increased significantly.
 
Which of the following, if true, most helps to explain the increase in wolf attacks on sheep?

选项:

A、Populations of deer and other wild animals that wolves typically prey on increased significantly in numbers from 1910 to 1915.
B、Prior to 1910, there were no legal restrictions in Hylantia on the hunting of wolves.
C、After 1910 hunters shot and wounded a substantial number of wolves, thereby greatly diminishing these wolves' ability to prey on wild animals.
D、Domestic sheep are significantly less able than most wild animals to defend themselves against wolf attacks.
E、The systematic hunting of wolves encouraged by the program drove many wolves in Hylantia to migrate to remote mountain areas uninhabited by humans.

答案:

C
3答疑

[Reading Comprehension]

登录查看答疑

试题详情

文章：

    In its 1903 decision in the case of Lone Wolf v. Hitchcock, the United States Supreme Court rejected the efforts of three Native American tribes to prevent the opening of tribal lands to non-Indian settlement without tribal consent. In his study of the Lone Wolf case, Blue Clark properly emphasizes the Court's assertion of a virtually unlimited unilateral power of Congress (the House of Representatives and the Senate) over Native American affairs. But he fails to note the decision's more far-reaching impact: shortly after Lone Wolf, the federal government totally abandoned negotiation and execution of formal written agreements with Indian tribes as a prerequisite for the implementation of federal Indian policy. Many commentators believe that this change had already occurred in 1871 when— following a dispute between the House and the Senate over which chamber should enjoy primacy in Indian affairs—Congress abolished the making of treaties with Native American tribes. But in reality the federal government continued to negotiate formal tribal agreements past the turn of the century, treating these documents not as treaties with sovereign nations requiring ratification by the Senate but simply as legislation to be passed by both houses of Congress. The Lone Wolf decision ended this era of formal negotiation and finally did away with what had increasingly become the empty formality of obtaining tribal consent.

题目：

According to the passage, which of the following resulted from the Lone Wolf decision?

选项:

A、The Supreme Court took on a greater role in Native American affairs.
B、Native American tribes lost their legal standing as sovereign nations in their dealings with the federal government, but their ownership of tribal lands was confirmed.
C、The federal government no longer needed to conclude a formal agreement with a Native American tribe in order to carry out policy decisions that affected the tribe.
D、The federal government began to appropriate tribal lands for distribution to non-Indian settlers.
E、Native American tribes were no longer able to challenge congressional actions by appealing to the Supreme Court.

答案:

C
3答疑

[Critical Reasoning]

登录查看答疑

试题详情

题目：

Linguist: In English, the past is described as “behind” and the future “ahead,” whereas in Aymara the past is “ahead” and the future “behind.” Research indicates that English speakers sway backward when discussing the past and forward when discussing the future. Conversely, Aymara speakers gesture forward with their hands when discussing the past and backward when discussing the future. These bodily movements, therefore, suggest that the language one speaks affects how one mentally visualizes time.

The linguist's reasoning depends on assuming which of the following?

选项:

A、At least some Aymara speakers sway forward when discussing the past and backward when discussing the future.
B、Most people mentally visualize time as running either forward or backward.
C、Not all English and Aymara speakers tend to sway or gesture forward or backward when discussing the present.
D、How people move when discussing the future correlates to some extent with how they mentally visualize time.
E、The researchers also examined the movements of at least some speakers of languages other than English and Aymara discussing the past and the future.

答案:

D
3答疑

[Sentence Correction]

登录查看答疑

试题详情

题目：

A site once used as an observatory by the Anasazi, ancient pueblo dwellers of New Mexico, has been recently discovered where patterns of light and shadow were employed to establish the precise limits of the positions of the Sun and Moon over a nineteen-year cycle.

选项:

A、A site once used as an observatory by the Anasazi, ancient pueblo dwellers of New Mexico, has been recently discovered where patterns of light and shadow were employed to establish the precise limits of the positions of the Sun and Moon over a nineteen-year cycle.
B、A recently discovered site was once used as an observatory by the Anasazi, ancient pueblo dwellers of New Mexico, where patterns of light and shadow were employed to establish the precise limits of the positions of the Sun and Moon over a nineteen-year cycle.
C、At a recently discovered site once used as an observatory by the Anasazi, ancient pueblo dwellers of New Mexico, patterns of light and shadow were employed to establish the precise limits of the positions of the Sun and Moon over a nineteen-year cycle.
D、Patterns of light and shadow were employed to establish the precise limits of the positions of the Sun and Moon over a nineteen-year cycle at a site that was recently discovered and was once used by the Anasazi, ancient pueblo dwellers of New Mexico.
E、Patterns of light and shadow were employed to establish the precise limits of the positions of the Sun and Moon over a nineteen-year cycle at a recently discovered place that the Anasazi, ancient pueblo dwellers of New Mexico, once used the site as an observatory.

答案:

C
3答疑

[Critical Reasoning]

登录查看答疑

试题详情

题目：

According to the Tristate Transportation Authority, making certain improvements to the main commuter rail line would increase ridership dramatically. The authority plans to finance these improvements over the course of five years by raising automobile tolls on the two highway bridges along the route the rail line serves. Although the proposed improvements are indeed needed, the authority's plan for securing the necessary funds should be rejected because it would unfairly force drivers to absorb the entire cost of something from which they receive no benefit.
Which of the following, if true, would cast the most doubt on the effectiveness of the authority's plan to finance the proposed improvements by increasing bridge tolls?

选项:

A、Before the authority increases tolls on any of the area bridges, it is required by law to hold public hearings at which objections to the proposed increase can be raised.
B、Whenever bridge tolls are increased, the authority must pay a private contractor to adjust the automated toll-collecting machines. 
C、Between the time a proposed toll increase is announced and the time the increase is actually put into effect, many commuters buy more tokens than usual to postpone the effects of the increase. 
D、When tolls were last increased on the two bridges in question, almost 20 percent of the regular commuter traffic switched to a slightly longer alternative route that has since been improved.
E、The chairman of the authority is a member of the Tristate Automobile dub that has registered strong opposition to the proposed toll increase.

答案:

D
3答疑

[Problem Solving]

登录查看答疑

试题详情

题目：

If 1050 – 74 is written as an integer in base 10 notation, what is the sum of the digits in that integer?

选项:

A、424
B、433
C、440
D、449
E、467

答案:

C
3答疑

[Multi-Source Reasoning]

登录查看答疑

试题详情

文章：

Sports Association

Statement by sports association spokes-­person:

Our sports association issues contracts to television networks for the exclusive right to broadcast our sporting events. For this right, the networks pay the association substantial fees, which help finance our leagues. We also provide free media passes to our events for journalists so that they can effectively report on sports news, including final scores. Now, how­ever, some news organizations are posting video clips, audio clips, digital photographs, and live score updates from our events on their websites. Conditions must be placed on these practices, which go beyond mere sports news reporting; they harm the value of our broad­casting contracts and violate our rights as the owners of the sports leagues. News organiza­tions that wish to post such information on their websites should therefore sign contracts with the sports association that stipulate what post­ings will be allowed and how much they will cost. As we have in the past, we will deny media passes to journalists from news organi­zations that do not comply with our require­ments.

News Organizations

Statement by news organizations spokes­person:

me news business has largely shifted (rom print media to the Internet, where readers expect text to be accompanied by audio and Images To charge news organizations for providing online sports coverage or to place unnecessary conditions on that coverage is to deny news organizations their right to cover the news. Online news sites are not asking to broadcast sporting events In their entirety, and their sports reporting does not detract from the value of the sports leagues or their events. On the contrary—free, engaging sports reporting generates interest in sports and thus benefits readers and the sports association alike. News organizations must be allowed to report freely about sports on their websites, in any time­frame, using any type of online medium they deem effective.

题目：

11. For each of the following issues, select Disagree if, based on the information provided, it can be inferred that the sports association and the news organizations would hold opposing positions on the issue. Otherwise, select Cannot infer disagreement.

选项:

A、The degree to which online sports reporting generates interest in sports.
B、How frequently a website should be able to update scores form a sporting event in progress.
C、The conditions under which a news organization should be allowed access to report on the sports association's events.

答案:

B A A
0评分
960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
2794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
3070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
1046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
2401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
1660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
1066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
1130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
261249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
268366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