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[Sentence Correction]

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题目：

Most efforts to combat such mosquito-borne diseases like malaria and dengue have focused either on the vaccination of humans or on exterminating mosquitoes with pesticides.

选项:

A、like malaria and dengue have focused either on the vaccination of humans or on exterminating
B、like malaria and dengue have focused either on vaccinating of humans or on the extermination of
C、as malaria and dengue have focused on either vaccinating humans or on exterminating
D、as malaria and dengue have focused on either vaccinating of humans or on extermination of
E、as malaria and dengue have focused on either vaccinating humans or exterminating

答案:

E
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[Critical Reasoning]

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题目：

The tulu, a popular ornamental plant, does not reproduce naturally, and is only bred and sold by specialized horticultural companies. Unfortunately, the tulu is easily devastated by a contagious fungal rot. The government ministry plans to reassure worried gardeners by requiring all tulu plants to be tested for fungal rot before being sold. However, infected plants less than 30 weeks old have generally not built up enough fungal rot in their systems to be detected reliably. And many tulu plants are sold before they are 24 weeks old.

Which of the following, if performed by the government ministry, could logically be expected to overcome the problem with their plan to test for the fungal rot?

选项:

A、Releasing a general announcement that tulu plants less than 30 weeks old cannot be effectively tested for fungal rot
B、Requiring all tulu plants less than 30 weeks old to be labeled as such
C、Researching possible ways to test tulu plants less than 24 weeks old for fungal rot
D、Ensuring that tulu plants not be sold before they are 30 weeks old
E、Quarantining all tulu plants from horticultural companies at which any case of fungal rot has been detected until those tulu plants can be tested for fungal rot

答案:

D
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题目：

Recent interdisciplinary studies advance the argument that emotions, including those deemed personal or private is a social phenomenon, though one inseparable from bodily response.

选项:

A、private is a social phenomenon, though one inseparable
B、private, are social phenomena that are inseparable
C、private are a social phenomenon but are not those separable
D、private—are social phenomena but not separable
E、also as private emotions, are social phenomena not inseparable

答案:

B
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题目：

Medicare, the United States government's health insurance program for the elderly and disabled, covers the full cost of home health care, but not with other nonhospital services where 20 percent of the costs must be paid by beneficiaries.

选项:

A、but not with other nonhospital services where 20 percent of the costs must be paid by beneficiaries
B、but not of other nonhospital services, making beneficiaries pay 20 percent of the costs
C、but not of other nonhospital services, for which beneficiaries must pay 20 percent of the costs
D、which is unlike other nonhospital services in that 20 percent of the costs must be paid by beneficiaries
E、which is unlike other nonhospital services that make beneficiaries pay 20 percent of the costs

答案:

C
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题目：

Neither First Lady Eleanor Roosevelt nor Secretary of Labor Frances Perkins sought recognition by the press, and both cautiously allowed others of the Roosevelt brain trust to take credit for the genesis of historic programs in public employment, relief, and social security that were in large measure what they had been responsible for.

选项:

A、to take credit for the genesis of historic programs in public employment, relief, and social security that were in large measure what they had been responsible for
B、to take credit for the genesis of historic programs in public employment, relief, and social security for which the two women were in large measure responsible
C、taking credit for the genesis of historic programs in public employment, relief, and social security for which the two women were in large measure responsible
D、taking credit for the genesis of historic programs in public employment, relief, and social security that were in large measure what they were responsible for
E、taking credit for the genesis of historic programs in public employment, relief, and social security which were largely their responsibility

答案:

B
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[Reading Comprehension]

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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：

As an element in the argument presented by the author of the passage, the reference to Blue Clark's study of the Lone Wolf case serves primarily to

选项:

A、point out that this episode in Native American history has received inadequate attention from scholars
B、support the contention of the author of the passage that the Lone Wolf decision had a greater long-term impact than did the congressional action of 1871
C、challenge the validity of the Supreme Court's decision confirming the unlimited unilateral power of Congress in Native American affairs
D、refute the argument of commentators who regard the congressional action of 1871 as the end of the era of formal negotiation between the federal government and Native American tribes
E、introduce a view about the Lone Wolf decision that the author will expand upon

答案:

E
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[Critical Reasoning]

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题目：

In the United States, of the people who moved from one state to another when they retired, the percentage who retired to Florida has decreased by three percentage points over the past ten years.  Since many local businesses in Florida cater to retirees, this decline is likely to have a noticeably negative economic effect on these businesses.
 
Which of the following, if true, most seriously weakens the argument?

选项:

A、Florida attracts more people who move from one state to another when they retire than does any other state.
B、The number of people who move out of Florida to accept employment in other states has increased over the past ten years.
C、There are far more local businesses in Florida that cater to tourists than there are local businesses that cater to retirees.
D、The total number of people who retired and moved to another state for their retirement has increased significantly over the past ten years.
E、The number of people who left Florida when they retired to live in another state was greater last year than it was ten years ago.

答案:

D
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题目：

Increased use of incineration is sometimes advocated as a safe way to dispose of chemical waste. But opponents of incineration point to the 40 incidents involving unexpected releases of dangerous chemical agents that were reported just last year at two existing incinerators commissioned to destroy a quantity of chemical waste material. Since designs for proposed new incinerators include no additional means of preventing such releases, leaks will only become more prevalent if use of incineration increases.

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

选项:

A、At the two incinerators at which leaks were reported, staff had had only cursory training on the proper procedures for incinerating chemical waste.
B、Other means of disposing of chemical waste, such as chemical neutralization processes, have not been proven safer than incineration.
C、The capacity of existing incinerators is sufficient to allow for increased incineration of chemical waste without any need for new incinerators.
D、The frequency of reports of unexpected releases of chemical agents at newly built incinerators is about the same as the frequency at older incinerators.
E、In only three of the reported incidents of unexpected chemical leaks did the releases extend outside the property on which the incinerators were located.

答案:

A
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题目：

To attract the most talented workers, some companies are offering a wider range of benefits, letting employees pick those most important to them.

选项:

答案:

A
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题目：

It is unclear whether chimpanzees are unique among nonhuman species in their ability to learn behaviors from one another, or if, when other animals are studied in as much depth, similar patterns would be found.

选项:

A、 if, when other animals are studied in as much depth, similar patterns would be found
B、 if other animals were studied with as much depth they would exhibit similar patterns
C、 would similar patterns be found in other animals if they were studied in as much depth
D、 whether similar patterns would be exhibited in other animals that were studied with as much depth
E、 whether other animals would exhibit similar patterns if they were studied in as much depth

答案:

E
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443浏览

[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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1674浏览

[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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635浏览

[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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1459浏览

[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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1037浏览

[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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690浏览

[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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704浏览

[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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165835浏览

[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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172949浏览

[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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