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[Critical Reasoning]

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题目：

Whales originated in the freshwater lakes and rivers of ancient Asia about sixty million years ago.  Not until about ten million years later did species of whales develop specialized kidneys enabling them to drink salt water.  Although fossil evidence shows that some early whale species that lacked such kidneys sometimes swam in the Earth's saltwater oceans, these species must have had to return frequently to freshwater rivers to drink.
 
Which of the following is most strongly supported by the information given?

选项:

A、Fossils of whale species dating from between sixty million and fifty million years ago will not be found on continents that were at the time separated from ancient Asia by wide expanses of ocean.
B、Among whale fossils that date from later than about fifty million years ago, none are fossils of whale species that drank only fresh water.
C、Fossils of whale species that drank fresh water will not be found in close proximity to fossils of whale species that drank salt water.
D、The earliest whales that drank salt water differed from fresh-water-drinking whales only in their possession of specialized kidneys.
E、Between sixty million and fifty million years ago, the freshwater lakes and rivers in which whales originated were gradually invaded by salt water.

答案:

A
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题目：

One critic's response to the philosopher's new work is not that the position it takes is heretical, as some have asserted, but instead nothing new to anyone who knows anything about the topic.

选项:

A、not that the position it takes is heretical, as some have asserted, but instead
B、not that the position it takes is heretical, like some have asserted, but it is
C、not that the position it takes is heretical, as some have asserted, but rather that it is
D、that the position it takes is not heretical, like some have asserted, instead
E、that the position it takes is not heretical, as some have asserted it to be, but rather it is

答案:

C
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题目：

Rivaling the pyramids of Egypt or even the ancient cities of the Maya as an achievement, the army of terra-cotta warriors created to protect Qin Shi Huang, China's first emperor, in his afterlife is more than 2,000 years old and took 700,000 artisans more than 36 years to complete.

选项:

A、the army of terra-cotta warriors created to protect Qin Shi Huang, China's first emperor, in his afterlife is more than 2,000 years old and took 700,000 artisans more than 36 years to complete
B、Qin Shi Huang, China's first emperor, was protected in his afterlife by an army of terra-cotta warriors that was created more than 2,000 years ago by 700,000 artisans who took more than 36 years to complete it
C、it took 700,000 artisans more than 36 years to create an army of terra-cotta warriors more than 2,000 years ago that would protect Qin Shi Huang, China's first emperor, in his afterlife
D、more than 2,000 years ago, 700,000 artisans worked more than 36 years to create an army of terra-cotta warriors to protect Qin Shi Huang, China's first emperor, in his afterlife
E、more than 36 years were needed to complete the army of terra-cotta warriors that 700,000 artisans created 2,000 years ago to protect Qin Shi Huang, China's first emperor, in his afterlife

答案:

A
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[Reading Comprehension]

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文章：

    Many researchers regard Thailand's recent economic growth, as reflected by its gross domestic product (GDP) growth rates, as an example of the success of a modern technological development strategy based on the market economics of industrialized countries. Yet by focusing solely on aggregate economic growth data as the measure of Thailand's development, these researchers have overlooked the economic impact of rural development projects that improve people's daily lives at the village levelsuch as the cooperative raising of water buffalo, improved sanitation, and the development of food crops both for consumption and for sale at local markets; such projects are not adequately reflected in the country's GDP. These researchers, influenced by Robert Heilbroner's now outdated development theory, tend to view nontechnological development as an obstacle to progress. Heilbroner's theory has become doctrine in some economics textbooks: for example, Monte Palmer disparages nontechnological rural development projects as inhibiting constructive change. Yet as Ann Kelleher's two recent case studies of the Thai villages Non Muang and Dong Keng illustrate, the nontechnological-versus-technological dichotomy can lead researchers not only to overlook real advances achieved by rural development projects but also mistakenly to conclude that because such advances are initiated by rural leaders and are based on traditional values and practices, they retard "real" economic development.

题目：

It can be inferred from the passage that the term "real" in the highlighted text most likely refers to economic development that is

选项:

A、based on a technological development strategy
B、not necessarily favored by most researchers
C、initiated by rural leader
D、a reflection of traditional values and practices
E、difficult to measure statistically

答案:

A
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[Critical Reasoning]

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题目：

Shipping Clerk:  The five specially ordered shipments sent out last week were sent out on Thursday.  Last week, all of the shipments that were sent out on Friday consisted entirely of building supplies, and the shipping department then closed for the weekend.  Four shipments were sent to Truax Construction last week, only three of which consisted of building supplies.
 
If the shipping clerk's statements are true, which of the following must also be true?

选项:

A、At least one of the shipments sent to Truax Construction last week was specially ordered.
B、At least one of last week's specially ordered shipments did not consist of building supplies.
C、At least one of the shipments sent to Truax Construction was not sent out on Thursday of last week.
D、At least one of the shipments that were sent out on Friday of last week was sent to Truax Construction.
E、At least one of the shipments sent to Truax Construction last week was sent out before Friday.

答案:

E
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题目：

The global-warming effect of ocean white caps are one of the many aspects of the ocean environment that are not yet incorporated in any detail into the computer models used for predicting how rising greenhouse gas concentrations could affect climate.

选项:

A、The global-warming effect of ocean white caps are one of the many aspects of the ocean environment that are not yet incorporated in any detail into the computer models used for predicting
B、The effect on global warming of ocean white caps are one of the many aspects of the ocean environment not yet incorporated in any detail into computer models, which they use to predict
C、The effect of ocean white caps on global warming is one of the many aspects of the ocean environment that are not yet incorporated in any detail into the computer models used to predict
D、That ocean white caps have an effect on global warming is one of the many aspects of the ocean environment not yet having been incorporated in any detail into the computer models that are used for predicting
E、That ocean white caps have an effect on global warming is one of the many aspects of the ocean environment not yet being incorporated in any detail into computer models, which they use to predict

答案:

C
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[Critical Reasoning]

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题目：

In recent years, networks of fiber-optic cable have been replacing electrical wire for transmitting telecommunications signals, Signals running through fiber-optic cables deteriorate, and wo the signals must be run through a piece of e3quiplent called a regenerator before being transmitted father. Light-Line is the leading manufacturer of signal regenerators. Therefore, Light-line is one of the companies that will most benefit if new long-distance fiber-optic telecommunications networks are constructed.
 
Which of the following, if true, casts the most doubt on the prediction about light-ling's prospects?

选项:

A、Telecommunications signals sent along electrical wires can travel much Farther than signals transmitted through fiber-optic before needing to be regenerated.
B、Expanding its production of regenerators will require Light-line to spend Proportionately more on labor and materials.
C、The volume of signals that a fiber-optic cable can carry is several Thousand timesgreater than the volume that can be carried by an electrical Wire of similar size.
D、There are technologies that enable telecommunications signals to be Transmitted without either wire or fiber-optic cable
E、 Several manufacturers are developing regenerator technologies that willow signals To be transmitted many times farther than at present before requiring regeneration

答案:

E
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题目：

Since the start of the space age, more and more littering has occurred in orbits near Earth, often because the intentional discarding of lens caps, packing material, fuel tanks, and payload covers.

选项:

A、more and more littering has occurred in orbits near Earth, often because
B、orbits near Earth have become more and more littered, often from
C、orbits near Earth became littered more and more, often resulting from
D、there have been more and more littering of orbits near Earth, often because of
E、there had been littering more and more of orbits near Earth, often with

答案:

B
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题目：

Archaeologist: Researchers excavating a burial site in Cyprus found a feline skeleton lying near a human skeleton. Both skeletons were in the same sediment at the same depth and equally well-preserved, suggesting that the feline and human were buried together about 9,500 years ago. This shows that felines were domesticated around the time farming began, when they would have been useful in protecting stores of grain from mice.

Which of the following, if true, would most seriously weaken the archaeologist’s argument?

选项:

A、Archaeologists have not found any remains of stores of grain in the immediate vicinity of the burial site.
B、The burial site in Cyprus is substantially older than any other known burial site in which a feline skeleton and a human skeleton appear to have been buried together.
C、Paintings found near the burial site seem to show people keeping felines as domestic companions, but do not show felines hunting mice.
D、In Cyprus, there are many burial sites dating from around 9,500 years ago in which the remains of wild animals appear to have been buried alongside human remains.
E、Before felines were domesticated, early farmers had no effective way to protect stores of grain from mice.

答案:

D
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题目：

Before scientists learned how to make a synthetic growth hormone, removing it painstakingly in small amounts from the pituitary glands of human cadavers.

选项:

A、scientists learned how to make a synthetic growth hormone, removing it painstakingly
B、scientists had learned about making a synthetic growth hormone, they had to remove it painstakingly
C、scientists learned how to synthesize the growth hormone, it had to be painstakingly removed
D、learning how to make a synthetic growth hormone, scientists had to remove it painstakingly
E、learning how to synthesize the growth hormone, it had to be painstakingly removed by scientists

答案:

C
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[Undefined]

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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？
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[Undefined]

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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
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[Undefined]

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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
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[Undefined]

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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？
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[GWD]

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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
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[OG]

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The primary purpose of the passage is to
为什么选E不选B
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[Undefined]

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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
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[Undefined]

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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
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[Undefined]

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Analytical!
请问may老师，这题该用什么思路来做？
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[Undefined]

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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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