ChaseDream

标题: 回报cd特此大家有逻辑问题我来回答（时间一周左右） [打印本页]

作者: crack25 时间: 2011-9-29 18:50
标题: 回报cd特此大家有逻辑问题我来回答（时间一周左右）
发现了逻辑题目越来越interesting,特此回报cd，大家对于逻辑有啥问题都贴出题目吧，我愿意来解答。虽然我不牛，但是我喜欢逻辑，如果我也有不会的我会询问他人给大家一个满意的答案

请各位发题的时候给出题号
9 29update 2#,4#---> 9 29 WORD 文本
9 30 update OG12*1---> 9 30 WORD 文本
10 1 update OG, PREP OLD *1 PREP NEW *1

从第3页开始，因为楼主个人原因，更新的时间不多了，但是只要发贴，楼主能回就会回复。如果不能得话也请大家多多原谅。
10 3 21：26

作者: onlybeata 时间: 2011-9-29 19:38
那我先来问一个~
GWD1-Q3:
A product that represents a clear technological advance over competing products can generally command a high price. Because technological advances tend to be quickly surpassed and companies who want to make large profits while they still can, many companies charge the greatest price the market will bear when they have such a product. But large profits on the new product will give competitors a strong incentive to quickly match the new product’s capabilities. Consequently, the strategy to maximize overall profit from a new product is to charge less than the greatest possible price.
In the argument above, the two portions in boldface play which of the following roles?

a.The first is an assumption that forms the basis for a course of action that the argument criticizes; the second presents the course of action endorsed by the argument.
b.The first is a consideration raised to explain the appeal of a certain strategy; the second is a consideration raised to call into question the wisdom of adopting that strategy.
c.The first is an assumption that has been used to justify a certain strategy; the second is a consideration that is used to cast doubt on that assumption.
d.The first is a consideration raised in support of a strategy the argument endorses; the second presents grounds in support of that consideration.
e.The first is a consideration raised to show that adopting a certain strategy is unlikely to achieve the intended effect; the second is presented to explain the appeal of that strategy.

作者: onlybeata 时间: 2011-9-29 19:39
黑体的是technological advances tend to be quickly surpassed和large profits on the new product will give competitors a strong incentive to quickly match the new product’s capabilities.
谢谢楼主~

作者: 随手解救GT 时间: 2011-9-29 19:40
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?
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

most useful to determine in evaluating the argument?<--我不懂这个题目要我evaluate什么。求解。

作者: gmat新手22 时间: 2011-9-29 22:39
48. If the county continues to collect residential trash at current levels, landfills will soon be overflowing and parkland will need to be used in order to create more space. Charging each household a fee for each pound of trash it puts out for collection will induce residents to reduce the amount of trash they create; this charge will therefore protect the remaining county parkland。
Which of the following is an assumption made in drawing the conclusion above?
(A)Residents will reduce the amount of trash they put out for collection by reducing the number of products they buy.
(B) The collection fee will not significantly affect the purchasing power of most residents, even if their households do not reduce the amount of trash they put out.
(C） The collection fee will not induce residents to dump their trash in the parklands illegally.
(D) The beauty of county parkland is an important issue for most of the county’s residents.
(E) Landfills outside the county’s borders could be used as dumping sites for the county’s trash.

我觉得A和C 都对，可为啥A不对呢。。因为A说居民最终都减少了垃圾的排放，所以我认为支持了结论啊。。。跪求楼主解答！！

作者: crack25 时间: 2011-9-30 11:10
顺便说一下，我把解答都放在了word里面

作者: xzybx 时间: 2011-9-30 20:30
看看

作者: crack25 时间: 2011-9-30 22:05

48. If the county continues to collect residential trash at current levels, landfills will soon be overflowing and parkland will need to be used in order to create more space. Charging each household a fee for each pound of trash it puts out for collection will induce residents to reduce the amount of trash they create; this charge will therefore protect the remaining county parkland。
Which of the following is an assumption made in drawing the conclusion above?
(A)Residents will reduce the amount of trash they put out for collection by reducing the number of products they buy.
(B) The collection fee will not significantly affect the purchasing power of most residents, even if their households do not reduce the amount of trash they put out.
(C） The collection fee will not induce residents to dump their trash in the parklands illegally.
(D) The beauty of county parkland is an important issue for most of the county’s residents.
(E) Landfills outside the county’s borders could be used as dumping sites for the county’s trash.

我觉得A和C 都对，可为啥A不对呢。。因为A说居民最终都减少了垃圾的排放，所以我认为支持了结论啊。。。跪求楼主解答！！

-- by 会员 gmat新手22 (2011/9/29 22:39:51)

ote]

我的思路是先看问题假设，然后提干，collect residential trash.. landfills will over flow… so a plan: fee will help con: the trash will be reduced.
48. If the county continues to collect residential trash at current levels, landfills will soon be overflowing and parkland will need to be used in order to create more space. Charging each household a fee for each pound of trash it puts out for collection will induce residents to reduce the amount of trash they create; this charge will therefore protect the remaining county parkland。
Which of the following is an assumption made in drawing the conclusion above?
(A)Residents will reduce the amount of trash they put out for collection by reducing the number of products they buy. 这个没有用呀，或者说无关题目，只是再说citizens will reduce amount of trash…, by a meanà reduce what they bought. 这个和整体计划实行没有关，包括到原文最后一句话，也是一样的。

我认为这个需要搞清楚整个逻辑链条，
(B) The collection fee will not significantly affect the purchasing power of most residents, even if their households do not reduce the amount of trash they put out.
(C） The collection fee will not induce residents to dump their trash in the parklands illegally. 很明显，对的，因为这就是从题目逻辑条出发的意思是将不会非法倾倒垃圾
(D) The beauty of county parkland is an， important issue for most of the county’s residents.
(E) Landfills outside the county’s borders could be used as dumping sites for the county’s trash.

我觉得A和C 都对，可为啥A不对呢。。因为A说居民最终都减少了垃圾的排放，所以我认为支持了结论啊。。。跪求楼主解答！！

-- by 会员gmat新手22 (2011/9/29 22:39:51)

[/quote]

作者: 老萬 时间: 2011-9-30 22:32
求解：新PREP逻辑，Part2-78，84，85

78. (32009-!-item-!-188;#058&006754)

Kitchen magazine plans to license the use of its name by a line of cookware. For a magazine, licensing the use of its name for products involves some danger, since if the products disappoint consumers, the magazine's reputation suffers, with consequent reductions in circulation and advertising. However, experts have evaluated the cookware and found it superior to all other cookware advertised in Kitchen. Therefore, Kitchen can collect its licensing fee without endangering its other revenues.
The argument above assumes which of the following?
A. No other line of cookware is superior to that which will carry the Kitchen name.
B. Kitchen will not license the use of its name for any products other than the line of cookware.
C. Makers of cookware will not find Kitchen a less attractive advertising vehicle because the magazine's name is associated with a competing product.
D. Consumers who are not regular readers of Kitchen magazine will be attracted to the cookware by the Kitchen name.
E. Kitchen is one of the most prestigious cooking-related magazines.
求解B为什么不选.

作者: 老萬 时间: 2011-9-30 22:34
84. (26216-!-item-!-188;#058&001794)

The general availability of high-quality electronic scanners and color printers for computers has made the counterfeiting of checks much easier. In order to deter such counterfeiting, several banks plan to issue to their corporate customers checks that contain dots too small to be accurately duplicated by any electronic scanner currently available; when such checks are scanned and printed, the dots seem to blend together in such a way that the word “VOID” appears on the check.
A questionable assumption of the plan is that
A. in the territory served by the banks the proportion of counterfeit checks that are made using electronic scanners has remained approximately constant over the past few years
B. most counterfeiters who use electronic scanners counterfeit checks only for relatively large amounts of money
C. the smallest dots on the proposed checks cannot be distinguished visually except under strong magnification
D. most corporations served by these banks will not have to pay more for the new checks than for traditional checks
E. the size of the smallest dots that generally available electronic scanners are able to reproduce accurately will not decrease significantly in the near future
求解A项

作者: 老萬 时间: 2011-9-30 22:36
85. (24392-!-item-!-188;#058&000894)

Every fall Croton's jays migrate south. The jays always join flocks of migrating crookbeaks with which they share the same summer and winter territories. If a jay becomes separated from the crookbeaks it is accompanying, it wanders until it comes across another flock of crookbeaks. Clearly, therefore, Croton's jays lack the navigational ability to find their way south on their own.
Which of the following, if true, most strengthens the argument above?
A. Croton's jays lay their eggs in the nests of crookbeaks, which breed upon completing their southern migration.
B. The three species most closely related to crookbeaks do not migrate at all.
C. In the spring, Croton's jays migrate north in the company of Tattersall warblers.
D. Species other than Croton's jays occasionally accompany flocks of migrating crookbeaks.
E. In the spring, crookbeaks migrate north before Croton's jays do.
这个题不太明白，结论是没有朝南飞的能力，感觉没有合适的选项，答案是C

作者: 老萬 时间: 2011-10-1 11:51
ding!

作者: crack25 时间: 2011-10-1 16:22
78. (32009-!-item-!-188;#058&006754)

Kitchen magazine plans to license the use of its name by a line of cookware. K杂志计划给cookware授予使用k杂志的名字，但是这种授权会让该杂志的名誉受到影响，当这个产品让消费者失望的时候For a magazine, licensing the use of its name for products involves some danger, since if the products disappoint consumers, the magazine's reputation suffers, with consequent reductions in circulation and advertising. However, experts have evaluated the cookware and found it superior to all other cookware advertised in Kitchen. 但是专家评价后说发现这种cookware比别的都强所以认为不会有上述问题，所以可以授权Therefore, Kitchen can collect its licensing fee without endangering its other revenues.首先看问题问得是假设，然后看题
The argument above assumes which of the following?
A. No other line of cookware is superior to that which will carry the Kitchen name.这个等于没说，在重复专家的想法
B. Kitchen will not license the use of its name for any products other than the line of cookware. 跟其他的没有关系，我在讨论这个，你说别的没用
C. Makers of cookware will not find Kitchen a less attractive advertising vehicle because the magazine's name is associated with a competing product. 是的，取非之后如果产品的maker不愿意弄也是没用的。再其次，正推说明会使用该名字授权
D. Consumers who are not regular readers of Kitchen magazine will be attracted to the cookware by the Kitchen name. 无关
E. Kitchen is one of the most prestigious cooking-related magazines. 无关
求解B为什么不选.

作者: crack25 时间: 2011-10-1 16:27
The general availability of high-quality electronic scanners and color printers for computers has made the counterfeiting of checks much easier. In order to deter such counterfeiting, several banks plan to issue to their corporate customers checks that contain dots too small to be accurately duplicated by any electronic scanner currently available; when such checks are scanned and printed, the dots seem to blend together in such a way that the word “VOID” appears on the check.（这个地方其实都可以不看）
A questionable assumption of the plan is that
A. in the territory served by the banks the proportion of counterfeit checks that are made using electronic scanners has remained approximately constant over the past few years 保持稳定，说明？这个对于结论辨认counterfeiting，没有贡献
整个逻辑：出现问题关于盗版，为了解决这个，一些银行采用超级小的dot，对于防盗版有效

作者: crack25 时间: 2011-10-1 16:31
Every fall Croton's jays migrate south. The jays always join flocks of migrating crookbeaks with which they share the same summer and winter territories. If a jay becomes separated from the crookbeaks it is accompanying, it wanders until it comes across another flock of crookbeaks. Clearly, therefore, Croton's jays lack the navigational ability to find their way south on their own.
Which of the following, if true, most strengthens the argument above?
A. Croton's jays lay their eggs in the nests of crookbeaks, which breed upon completing their southern migration. 只是在说c把蛋下在另外一种的窝里。没有关联
B. The three species most closely related to crookbeaks do not migrate at all. 说的是跟c很像的3种东东不南迁，无关，
C. In the spring, Croton's jays migrate north in the company of Tattersall warblers. 这个正好，例子说明，支持题目，举例胜于一般的观点
D. Species other than Croton's jays occasionally accompany flocks of migrating crookbeaks. 无关
E. In the spring, crookbeaks migrate north before Croton's jays do. 无关
这个题不太明白，结论是没有朝南飞的能力，感觉没有合适的选项，答案是C
这个很经典说的

作者: miss绿光 时间: 2011-10-1 19:23
GWD-13-31
我发了帖子米有人回答~看见了大好人在这里~~谢过！！！
By competing with rodents for seeds, black ants help control rodent populations that pose a public health risk. However, a very aggressive species of black ant, the Loma ant, which has recently invaded a certain region, has a venomous sting that is often fatal to humans. Therefore, the planned introduction into that region of ant flies, which prey on Loma ants, would benefit public health.

Which of the following, if true, most strengthens the arguments?

A. Ant flies do not attack black ants other than Loma ants.
E. The use of pesticides to control Loma ants could have harmful effects on the enviroment.
现在理解A对了，但是还是不能理解为什么E不对。
我的想法是，原来用的pesticides会有harmful effects，所以我现在引入planner introduction of ant files，就不用再用那些有harmful effects的pesticides。

请大家纠正我~谢谢。

作者: pamela2011 时间: 2011-10-1 20:27
请教楼主一下，这是曼哈顿模块里面的第一题，很杯具的我完全看不懂，看了解释还是有点晕，

A recent article stated that only 5.5% of American colleges grant the majority of their degrees in the liberal arts. Citing this, a reader wrote to lament that this was further evidence of the decline of academic rigor in American post high school education.

Which of the following is an assumption on the part of the reader?--答案C。为什么呢？
A.The percentage of American colleges granting liberal arts degrees would continue to drop.
B.All colleges should grant the majority of their degrees in the liberal arts. C.Most post-secondary scientific, engineering, and vocational training does not involve as much academic rigor as liberal arts training.
D. Academic rigor is the most important aspect of post high school education. E.Of the colleges that do not grant the majority of their degrees in the liberal arts, many granted fewer than a quarter of their degrees in the liberal arts.

作者: 老萬 时间: 2011-10-1 20:52
可是朝南飞和朝北飞能等同吗？？？感觉严格讲都没关联啊

Every fall Croton's jays migrate south. The jays always join flocks of migrating crookbeaks with which they share the same summer and winter territories. If a jay becomes separated from the crookbeaks it is accompanying, it wanders until it comes across another flock of crookbeaks. Clearly, therefore, Croton's jays lack the navigational ability to find their way south on their own.
Which of the following, if true, most strengthens the argument above?
A. Croton's jays lay their eggs in the nests of crookbeaks, which breed upon completing their southern migration. 只是在说c把蛋下在另外一种的窝里。没有关联
B. The three species most closely related to crookbeaks do not migrate at all. 说的是跟c很像的3种东东不南迁，无关，
C. In the spring, Croton's jays migrate north in the company of Tattersall warblers. 这个正好，例子说明，支持题目，举例胜于一般的观点
D. Species other than Croton's jays occasionally accompany flocks of migrating crookbeaks. 无关
E. In the spring, crookbeaks migrate north before Croton's jays do. 无关
这个题不太明白，结论是没有朝南飞的能力，感觉没有合适的选项，答案是C
这个很经典说的

-- by 会员 crack25 (2011/10/1 16:31:36)

作者: onlybeata 时间: 2011-10-1 21:45

可是朝南飞和朝北飞能等同吗？？？感觉严格讲都没关联啊

-- by 会员老萬 (2011/10/1 20:52:21)

我觉得是说它没有导航的能力，c讲它往北飞也要跟另一种鸟一起也说明它没有这种能力。

作者: onlybeata 时间: 2011-10-1 21:48
楼主我很贪心，再问一道题行不?(*^__^*) 嘻嘻……
GWD1-Q13:
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?

A.Florida attracts more people who move from one state to another when they retire than does any other state.是像没有什么关，但感觉比d 要接近一点。
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. 难道说local business 的生意在another state也有做？
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.

作者: charlesgmat 时间: 2011-10-3 01:46
GWD17-Q11:
Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species to recover.

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

A.   Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.
B.   It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.
C.   The number of snow geese taken by hunters each year has grown every year for several years.
D.   As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.
E.   In the snow goose’s winter habitats, the goose faces no significant natural predation.
没看出B哪里削弱了

作者: hudongling001 时间: 2011-10-3 11:57
prep07 CR2 48. (33231-!-item-!-188;#058&007563)

Certain messenger molecules fight damage to the lungs from noxious air by telling the muscle cells encircling the lungs' airways to contract. This partially seals off the lungs. An asthma attack occurs when the messenger molecules are activated unnecessarily, in response to harmless things like pollen or household dust.

Which of the following, if true, points to the most serious flaw of a plan to develop a medication that would prevent asthma attacks by blocking receipt of any messages sent by the messenger molecules referred to above?

(A) Researchers do not yet know how the body produces the messenger molecules that trigger asthma attacks.
(B) Researchers do not yet know what makes one person's messenger molecules more easily activated than another's.
(C) Such a medication would not become available for several years, because of long lead times in both development and manufacture.
(D) Such a medication would be unable to distinguish between messages triggered by pollen and household dust and messages triggered by noxious air.
(E) Such a medication would be a preventative only and would be unable to alleviate an asthma attack once it had started.

作者: hudongling001 时间: 2011-10-3 11:58
看不懂啊看不懂……

作者: crack25 时间: 2011-10-3 21:09

GWD-13-31
我发了帖子米有人回答~看见了大好人在这里~~谢过！！！
By competing with rodents for seeds, black ants help control rodent populations that pose a public health risk.
However, a very aggressive species of black ant, the Loma ant, which has recently invaded a certain region, has
a venomous sting that is often fatal to humans. Therefore, the planned introduction into that region of ant flies,
which prey on Loma ants, would benefit public health.

Which of the following, if true, most strengthens the arguments?

A. Ant flies do not attack black ants other than Loma ants.恩其实这道题我有印象，不过我觉得其实我第一次看到这个选项会先排除，然后我会等之后其余选项都看完之后再选，我当时记得这道题其他选项都是无关
E. The use of pesticides to control Loma ants could have harmful effects on the enviroment.这个原文是一直再说，现是有个普通蚂蚁，然后又说这个L有问题，所以引进一种
the planned introduction into that region of ant flies就会捕食L，所以有益，所以，很明显这个无关。

现在理解A对了，但是还是不能理解为什么E不对。
我的想法是，原来用的pesticides会有harmful effects，所以我现在引入planner introduction of ant files，就不用再用那些有harmful effects的pesticides。

请大家纠正我~谢谢。

-- by 会员 miss绿光 (2011/10/1 19:23:41)

作者: crack25 时间: 2011-10-3 21:13

请教楼主一下，这是曼哈顿模块里面的第一题，很杯具的我完全看不懂，看了解释还是有点晕，

A recent article stated that only 5.5% of American colleges grant the majority of their degrees in the liberal arts.
Citing this, a reader wrote to lament that this was further evidence of the decline of academic rigor in American
post high school education.

Which of the following is an assumption on the part of the reader?--答案C。为什么呢？怎说呢，这个我看过M的讲解应该很清楚，我觉得你没有理解这篇文章的主要以四，就是说现在授予art学位的大学才5。5%，所以读者就认为未来the decline of academic rigor in American post high school education.

A.The percentage of American colleges granting liberal arts degrees would continue to drop.感觉跟没说一样
B.All colleges should grant the majority of their degrees in the liberal arts. 应该干什-与原文无关
C.Most postsecondary scientific, engineering, and vocational training does not involve as
much academic rigor as liberal arts training. 这个就是说其他没有增加授予的可能，正好取非削弱
D. Academic rigor is the most important aspect of post high school education.
E.Of the colleges that do not grant the majority of their degrees in the liberal arts,
many granted fewer than a quarter of their degrees in the liberal arts.

-- by 会员 pamela2011 (2011/10/1 20:27:56)

作者: crack25 时间: 2011-10-3 21:14
原文整体在说迁移，而且这个地方是需要的是加强，加强按照m说的就是由加强的意向就可以，不用100%的。而且，话说回来，以前lawyer讲的都是先排除那些无关的。然后再考虑剩下的。还有事例的加强〉道理的

作者: crack25 时间: 2011-10-3 21:20

楼主我很贪心，再问一道题行不?(*^__^*) 嘻嘻……
GWD1-Q13:
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?

A.Florida attracts more people who move from one state to another when they retire than does any other state.是像没有什么关，但感觉比d 要接近一点。对的，这个就是在说会吸引更多的人与其他地方相比，这个确实没用
B.The number of people who move out of Florida to accept employment in other states has increased over the past ten yea无关rs.
C.There are far more local businesses in Florida that cater to tourists than there are local businesses that cater to retirees无关
D.The total number of people who retired and moved to another state for their retirement has increased significantly over th
e past ten years. 难道说local business 的生意在another state也有做？恩，他在说基数大，你想一个盘子，盘子做得很大如果偶然出了一个问题也不会出事的利害，你可以想想那些银行，交行比较早盘子大，所以危机来的时候，整体的增长也是正的而且大于其他银行。
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.

-- by 会员 onlybeata (2011/10/1 21:48:46)

作者: crack25 时间: 2011-10-3 21:25

GWD17-Q11: 这道题相当interesting,首先顺一下逻辑链条，a地的鸟被g这种最近在增长的东西所替代，g虽然是捕猎的对象，但是很不幸打猎季节有规定，如果相对减少了5%就会提前停止。所以去掉这个约束，更多的当地生物会恢复。
Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese,
which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a
popular quarry for hunters in the southern regions where they winter, the hunting season ends if and
when hunting has reduced the population by five percent, according to official estimates. Clearly,
dropping this restriction would allow the other species to recover.

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

A. Hunting limits for snow geese were imposed many years ago
in response to a sharp decline in the population of snow geese.
B. It has been many years since the restriction led to the hunting season
for snow geese being closed earlier than the scheduled date.我当时就是AB迷惑了，其实你重点必须抓住原文，原文说的restriction是啥很重要，就是那个提前结束的法令，所以A说的很明显对象部队，错误，B就是说去掉了也没用，你想这个市最近鸟类减少，问题是你这个约束n多年前就有了，要是真是约束的原因，我怎没见你早期就申报要停止！！所以B 记住：相关/无关提速！！
C. The number of snow geese taken by hunters each year has grown every year for several years.
D. As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.
E. In the snow goose’s winter habitats, the goose faces no significant natural predation.
没看出B哪里削弱了

-- by 会员 charlesgmat (2011/10/3 1:46:14)

作者: mxzhcx 时间: 2011-10-8 21:06
[quote]
[quote]GWD-13-31

By competing with rodents for seeds, black ants help control rodent populations that pose a public health risk.
However, a very aggressive species of black ant, the Loma ant, which has recently invaded a certain region, has
a venomous sting that is often fatal to humans. Therefore, the planned introduction into that region of ant flies,
which prey on Loma ants, would benefit public health.

Which of the following, if true, most strengthens the arguments?

A. Ant flies do not attack black ants other than Loma ants.恩其实这道题我有印象，不过我觉得其实我第一次看到这个选项会先排除，然后我会等之后其余选项都看完之后再选，我当时记得这道题其他选项都是无关
E. The use of pesticides to control Loma ants could have harmful effects on the enviroment.这个原文是一直再说，现是有个普通蚂蚁，然后又说这个L有问题，所以引进一种
the planned introduction into that region of ant flies就会捕食L，所以有益，所以，很明显这个无关

关于这个题的E，否定一种别的可能性不是也算一种支持吗？那E里说用杀虫剂控制它不行，不就也是否定一种其他方法吗。。用来支持原文那个可行的。。

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