[Sentence Correction]
试题详情
题目：
Gusty westerly winds will continue to usher in a seasonably cool air mass into the region, as a broad area of high pressure will build and bring fair and dry weather for several days.
选项:
答案:
E
问答
6答疑
6答疑
[Critical Reasoning]
试题详情
题目：
In the late 1980’s, the population of sea otters in the North Pacific Ocean began to decline. Of the two plausible explanations for the decline—increased predation by killer whales or disease—disease is the more likely. After all, a concurrent sharp decline in the populations of seals and sea lions was almost certainly caused by a pollution-related disease, which could have spread to sea otters, whereas the population of killer whales did not change noticeably.
Which of the following, if true, most seriously weakens the reasoning?
选项:
A、Killer whales in the North Pacific usually prey on seals and sea lions but will, when this food source is scarce, seek out other prey.
B、There is no indication that substantial numbers of sea otters migrated to other locations from the North Pacific in the 1980’s.
C、Along the Pacific coast of North America in the 1980’s, sea otters were absent from many locations where they had been relatively common in former times.
D、Following the decline in the population of the sea otters, there was an increase in the population of sea urchins, which are sea otters’ main food source.
E、The North Pacific populations of seals and sea lions cover a wider geographic area than does the population of sea otters.
答案:
A
6答疑
[Critical Reasoning]
试题详情
题目：
Most of the world's supply of uranium currently comes from mines. It is possible to extract uranium from seawater, but the cost of doing so is greater than the price that uranium fetches on the world market. Therefore, until the cost of extracting uranium from seawater can somehow be reduced, this method of obtaining uranium is unlikely to be commercially viable.
Which of the following would it be most useful to determine in evaluating the argument?
选项:
A、Whether the uranium in deposits on land is rapidly being depleted
B、Whether most uranium is used near where it is mined
C、Whether there are any technological advances that show promise of reducing the cost of extracting uranium from seawater
D、Whether the total amount of uranium in seawater is significantly greater than the total amount of uranium on land
E、Whether uranium can be extracted from freshwater at a cost similar to the cost of extracting it from seawater
答案:
A
6答疑
[Critical Reasoning]
试题详情
题目：
Studies in restaurants show that the tips left by customers who pay their bill in cash tend to be larger when the bill is presented on a tray that bears a credit-card logo. Consumer psychologists hypothesize that simply seeing a credit-card logo makes many credit-card holders willing to spend more because it reminds them that their spending power exceeds the cash they have immediately available.
Which of the following, if true, most strongly supports the psychologists’ interpretation of the studies?
Which of the following, if true, most strongly supports the psychologists’ interpretation of the studies?
选项:
A、The effect noted in the studies is not limited to patrons who have credit cards.
B、Patrons who are under financial pressure from their credit-card obligations tend to tip less when presented with a restaurant bill on a tray with a credit-card logo than when the tray has no logo.
C、In virtually all of the cases in the studies, the patrons who paid bills in cash did not possess credit cards.
D、In general, restaurant patrons who pay their bills in cash leave larger tips than do those who pay by credit card.
E、The percentage of restaurant bills paid with a given brand of credit card increases when that credit card’s logo is displayed on the tray with which the bill is presented.
答案:
B
6答疑
[Critical Reasoning]
试题详情
题目：
Several industries have recently switched at least partly from older technologies powered by fossil fuels to new technologies powered by electricity. It is thus evident that less fossil fuel is being used as a result of the operations of these industries than would have been used if these industries had retained their older technologies.
Which of the following, if true, most strengthens the argument above?
Which of the following, if true, most strengthens the argument above?
选项:
A、Many of the industries that have switched at least partly to the new technologies have increased their output.
B、Less fossil fuel was used to manufacture the machinery employed in the new technologies than was originally used to manufacture the machinery employed in the older technologies.
C、More electricity is used by those industries that have switched at least partly to the new technologies than by those industries that have not switched.
D、Some of the industries that have switched at least partly to the new technologies still use primarily technologies that are powered by fossil fuels.
E、The amount of fossil fuel used to generate the electricity needed to power the new technologies is less than the amount that would have been used to power the older technologies.
答案:
E
6答疑
[Sentence Correction]
试题详情
题目：
Making things even more difficult has been general market inactivity lately, if not paralysis, which has provided little in the way of pricing guidance.
选项:
A、has been general market inactivity lately, if not paralysis, which has provided
B、there is general market inactivity, if not paralysis, lately it has provided
C、general market inactivity, if not paralysis, has lately provided
D、lately, general market inactivity, if not paralysis, has provided
E、is that lately general market inactivity, if not paralysis, which provides
答案:
D
5答疑
[Critical Reasoning]
试题详情
题目：
In Kravonia, the average salary for jobs requiring a college degree has always been higher than the average salary for jobs that do not require a degree. Current enrollments in Kravonia's colleges indicate that over the next four years the percentage of the Kravonian workforce with college degrees will increase dramatically. Therefore, the average salary for all workers in Kravonia is likely to increase over the next four years.
Which of the following is an assumption on which the argument depends?
选项:
A、Kravonians with more than one college degree earn more, on average, than do Kravonians with only one college degree.
B、The percentage of Kravonians who attend college in order to earn higher salaries is higher now than it was several years ago.
C、The higher average salary for jobs requiring a college degree is not due largely to a scarcity among the Kravonian workforce of people with a college degree.
D、The average salary in Kravonia for jobs that do not require a college degree will not increase over the next four years.
E、Few members of the Kravonian workforce earned their degrees in other countries.
答案:
C
5答疑
[Critical Reasoning]
试题详情
题目：
It is true of both men and women that those who marry as young adults live longer than those who never marry. This dose not show that marriage causes people to live longer, since, as compared with other people of the same age, young adults who are about to get married have fewer of the unhealthy habits that can cause a person to have a shorter life, most notably smoking and immoderate drinking of alcohol.
Which of the following, if true, most strengthens the argument above?
选项:
A、Marriage tends to cause people to engage less regularly in sports that involve risk of bodily harm.
B、A married person who has an unhealthy habit is more likely to give up that habit than a person with the same habit who is unmarried.
C、A person who smokes is much more likely than a nonsmoker to marry a person who smokes at the time of marriage, and the same is true for people who drink alcohol immoderately.
D、Among people who marry as young adults, most of those who give up an unhealthy habit after marriage do not resume the habit later in life.
E、Among people who as young adults neither drink alcohol immoderately nor smoke, those who never marry live as long as those who marry.
答案:
E
5答疑
[Sentence Correction]
试题详情
题目：
The state religion of ancient China, which came into existence at least as far back as the Han Dynasty (206 B.C. to A.D. 220) and perhaps as early as the Western Zhou Dynasty (1050 B.C. to 771 B.C.), allowed only emperors performing the ritual worship of heaven, perceiving them as special links between the earthly and celestial realms.
选项:
A、only emperors performing the ritual worship of heaven, perceiving them as
B、only emperors to perform the ritual worship of heaven, with the perception of them being
C、the ritual worship of heaven to be performed only by emperors, who were perceived as
D、the ritual worship of heaven, performed by emperors only, with the perception of them as
E、the ritual worship of heaven as performed by emperors only, who were perceived to be
答案:
C
5答疑
[Critical Reasoning]
试题详情
题目：
Which of the following most logically completes the argument?
Sviatovin is a medieval Moringian text whose author and exact date of composition are unknown. However, the events in the life of Prince Sviatov that the text describes occurred in 1165, and in the diagram of Sviatov's family that accompanies the text his father, who died in 1167, is identified as still living. Thus Sviatovin must have been written between 1165 and 1167, assuming that
Sviatovin is a medieval Moringian text whose author and exact date of composition are unknown. However, the events in the life of Prince Sviatov that the text describes occurred in 1165, and in the diagram of Sviatov's family that accompanies the text his father, who died in 1167, is identified as still living. Thus Sviatovin must have been written between 1165 and 1167, assuming that
选项:
A、the life of Prince Sviatov is not the subject of any other medieval Moringian texts
B、the author of Sviatovin intended it to provide as accurate a report about Prince Sviatov's exploits as possible
C、the diagram accurately represents the composition of Sviatov's family at the time Sviatovin was written
D、Sviatovin is the earliest Moringian text whose composition can be dated to within a few years
E、Sviatovin was not written by Sviatov's father himself
答案:
C
0评分
785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.
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
2403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
2633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
922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
2111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
1451浏览
0评分
942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
974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
229550浏览
0评分
236674浏览
