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In California, a lack of genetic variation in the Argentine ant has allowed the spec due to their being so genetically similar to one another, the ants consider all their fellows to be a close relative and thus do not engage in the kind of fierce intercolony struggles that limits the spread of this species in its native Argentina.
Adue to their being so genetically similar to one another, the ants consider all their fellows to be a close relative and thus do not engage in the kind of fierce intercolony struggles that limits&&Bdue to its being so genetically similar the ant considers all its fellows to be a close relative and thus does not engage in the kind of fierce intercolnny struggles that limit&&Cbecause it is so genetically similar, the ant considers all its fellows to be close relatives and thus does not engage in the kind of fierce intercolony struggles that limits&&Dbecause they are so genetically similar to one another, the ants consider all their fellows to be close relatives and thus do not engage in the kind of fierce intercolony struggles that limit&&Ebecause of being so genetically similar to one another, the ants consider all their fellows to be a close relative and thus do not engage in the kind of fierce intercolony struggles that limits&&
正确答案: C
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In California, a lack of genetic variation in the Argentine ant has allowed the spec due to their being so genetically similar to one another, the ants consider all their fellows to be a close relative and thus do not engage in the kind of fierce intercolony struggles that limits the spread of this species in its native Argentina.
Adue to their being so genetically similar to one another, the ants consider all their fellows to be a close relative and thus do not engage in the kind of fierce intercolony struggles that limitsBdue to its being so genetically similar the ant considers all its fellows to be a close relative and thus does not engage in the kind of fierce intercolnny struggles that limitCbecause it is so genetically similar, the ant considers all its fellows to be close relatives and thus does not engage in the kind of fierce intercolony struggles that limitsDbecause they are so genetically similar to one another, the ants consider all their fellows to be close relatives and thus do not engage in the kind of fierce intercolony struggles that limitEbecause of being so genetically similar to one another, the ants consider all their fellows to be a close relative and thus do not engage in the kind of fierce intercolony struggles that limits
有人说C对，有人说D对。但这道题正确答案应该是D. 请牛人看看。
C中的it is similar这种说法是不对的，因为it是单数。而D呢，that limit这个定语从句修辞介词the kind, 因为the kind of 后面是复数的struggles，所以that后面用limit是可以的。that limit的正确用法的证明请看下面：
whitehouse的权威例句：
权威例句1：
But a metal detector can't detect the kind of explosives that were sewn into his clothes
（http://www.whitehouse.gov/the-press-office/remarks-president-strengthening-intelligence-and-aviation-security）
权威例句2：
These are the kind of stories I hear from small business owners all the time.
（来自WHITEHOUSE: President Obama Announces New Small Business Lending Initiatives | The White House
还有，句子的最后的species in its native 的its 可以指代of 介词后面的species,请看曼哈顿gmat的解释。
its refers back to species, so having a singular or plural ant/ants does not matter in this instance. You can have a group of things that is then later referred to in the sentence as a single entity(/forums/gmat-prep-verbal-sentence-correction-t11179-15.html)
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that这里必定是修饰struggles的，和kind没有关系。不用去考虑the kind+N的单复数问题。
PS：whitehouse的权威性能确认吗？
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chineuro，老兄
谢谢你的见解。
我也不知道whitehouse的新闻稿是否权威，但whitehouse的新闻稿是书面语，而且至少不会太错误吧。
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2楼应该是正解。
the fierce struggles limit the spread of such species
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kevinjpcn 发表于
chineuro，老兄
谢谢你的见解。
我也不知道whitehouse的新闻稿是否权威，但whitehouse的新闻稿是书面语，而 ...
GMAT语法是应付GMAT考试的语法，非常严格/严谨，诚然如果掌握精髓确实能让我们书写的书面语熠熠生辉。但是用非官方的材料来讨论gmat语法是大忌，可以说毫无意义。我不建议你这么做。
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chineuro，这两天看了新东方的语法总结，
其中说到that做限定性修辞的时候必须修辞紧贴that的那个词（只有which可以跳跃指代），
就像A of B that。。。， 这里that一定指B。
你完全正确，我终于明白了。谢谢！
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kevinjpcn 发表于
chineuro，这两天看了新东方的语法总结，
其中说到that做限定性修辞的时候必须修辞紧贴that的那个词（只有w ...
well，也不尽然。which和that修饰谁，其实是个指代问题。还要结合其他因素综合分析，比方说动词的单复数形式，人和物的指代用不同的引导词，等等。。。
论坛上有个帖子，专门讲which和that的指代。看完就毕业了。
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kevinjpcn 发表于
chineuro，这两天看了新东方的语法总结，
其中说到that做限定性修辞的时候必须修辞紧贴that的那个词（只有w ...
A of B that。。。， 这里that一定指B,这句话真的不一定正确。
曼哈顿第12章明确讲过，A “mission-critical” modifier falls down（两个修饰时，关键修饰放在中间）这种修饰经常是定义名词的of短语。第二重要的修饰指代名词+第一个修饰。
举的例子是：He had a way OF dodging opponents that impressed the scouts.
of dodging opponents修饰a way，that impressed the scouts修饰 a way of dodging opponents，that决定了that impressed the scouts不能修饰人opponents。
所以这里的that不一定只能指代struggles，也可以指代the kind of fierce intercolony struggles
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A of B that。。。， 这里that一定指B,这句话真的不一定正确。
曼哈顿第12章明确讲过，A “mission-crit ...
Mark一下！& && && && && &
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正学习曼哈顿的时候看见了帖子，来解释一下，虽然已经是2016年了。。。
He had a way OF DODGING OPPONENTS that impressed the scouts.
在这句话下面，曼哈顿提出了两个条件才越前指代的
一个是：Withoutthis modifier, the noun way is almost meaningless.
另一个是：It helps that the relative pronoun that cannot refer to human opponents, according to the GMAT.
放在题主这道GWD中，a kind短语本身是有意义的，struggle和从句也连得上，因此that优先指代struggles
都是我的理解，如果不对告诉我哈，我是语法小透明。。。
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求助gwd上的几道题
Favorable& & Unfavorable& & Not Sure
Candidate M& & 40& & 20& & 40
Candidate N& & 30& & 35& & 35
The table above shows the results of a survey of 100 voters each responded “favorable” or “unfavorable” or “not sure” when asked about their impressions of candidate M and of candidate N.What was the number of voters who responded “favorable” for both candidates?
(1)& & The number of voters who did not respond “favorable” for either candidate was 40.
(2)& & The number of voters who responded “unfavorable” for both candidates was 10.
Socially and environmentally responsible investing is on the rise:last year in the United States, over $2 trillion was invested in funds that screen companies according to a variety of criteria such as adherence to labor standards, protection of the environment, and observance of human rights.
A.& & according to a variety of criteria such as
B.& & according to a variety of such criteria, as by
C.& & according to such a variety of criteria as by
D.& & in accordance with such a variety of criteria as
E.& & in accordance with a variety of criteria, such as by
看到答案是E怎么都觉得不对阿
A certain quantity is measured on two different scales, the R-scale and the S-scale, that are related linearly.Measurements on the R-scale of 6 and 24 correspond to measurements on the S-scale of 30 and 60, respectively.What measurement on the R-scale corresponds to a measurement of 100 on the S-scale?
我是凑出来的，请问这类题该怎么解呢
By merging its two publishing divisions, the company will increase their share of the country’s $21 billion book market from 6 percent to 10 percent, a market ranging from obscure textbooks to mass-market paperbacks.
A.& & their share of the country’s $21 billion book market from 6 percent to 10 percent, a market ranging
B.& & from 6 percent to 10 percent its share of the $21 billion book market in the country, which ranges
C.& & to 10 percent from 6 percent in their share of the $21 billion book market in the country, a market ranging
D.& & in its share, from 6 percent to 10 percent, of the $21 billion book market in the country, which ranges
E.& & to 10 percent from 6 percent its share of the country’s $21 billion book market, which ranges
which不是应该就近修饰吗，觉得答案b也不是很好啊
A recent review of pay scales indicates that CEO’s now earn an average of 419 times more pay than blue-collar workers, compared to a ratio of 42 times in 1980.
A.& & that CEO’s now earn an average of 419 times more pay than blue-collar workers, compared to a ratio of 42 times
B.& & that, on average, CEO’s now earn 419 times the pay of blue-collar workers, a ratio that compares to 42 times
C.& & that, on average, CEO’s now earn 419 times the pay of blue-collar workers, as compared to 42 times their pay, the ratio
D.& & CEO’s who now earn on average 419 times more pay than blue-collar workers, as compared to 42 times their pay, the ratio
E.& & CEO’s now earning an average of 419 times the pay of blue-collar workers, compared to the ratio of 42 times
觉得答案b也不是很好阿
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.
A.& & have to know a great deal more than now about the social and economic
B.& & have to know a great deal more than they do now about the social and economical
C.& & would have to know a great deal more than they do now about the social and economical
D.& & would have to know a great deal more than they do now about the social and economic
E.& & would have to know a great deal more than now about the social and economic
我选了b答案是e觉得不是太理解
For a certain race, 3 teams were allowed to enter 3 members each.A team earned 6 – n points whenever one of its members finished in nth place, where 1 ≤ n ≤ 5.There were no ties, disqualifications, or withdrawals.If no team earned more than 6 points, what is the least possible score a team could have earned?
对这题不是很理解，求教各位阿
哪位能够帮帮忙啊
第十题我是这么想的
如果R和S是线性关系，就可以用这个共识表达
R=aS+b，其中a和b是系数。根据已知条件
所以, a=0.6,b=-12。
那么，当S=100的时候，R=48。
thank you very much!!!
For a certain race, 3 teams were allowed to enter 3 members each.A team earned 6 – n points whenever one of its members finished in nth place, where 1 ≤ n ≤ 5.There were no ties, disqualifications, or withdrawals.If no team earned more than 6 points, what is the least possible score a team could have earned?
对这题不是很理解，求教各位阿
这道题目的意思，应该是三个队，每队三个人，一共九个人，九个位置。得第一的人获得6-1=5分，第二名获得6-2=4分。以此类推。。。
可能获得的分数是：
5，4，3，2，1，0，0，0，0，0
前五名有积分，后面只得零分。
那么，用概率计算，或者直接看出，对于一个有三个人的队伍，最不可能的就是每个人都得零
分，三个人总分还是零分。
不知道是不是选A
赞同楼上的翻译,不过我觉得这题很蹊跷,因为2,1,0都是不可能的,A,B,C同样概率为0,不存在哪个最不可能的说法-----都是完全不可能.
总共可以得到的分是1+2+3+4+5=15分
每个队得分不超过6分,那么总积分排位在1,2的两支队伍至多只能得到12分,这就意味着第三支队伍至少得到15-12=3分,所以排除有队得到0,1,2的可能
因此,我建议楼主确认一下题目
同意楼上的分析,我也觉得题目可能有问题,不然0,1,2这三个分数都是不可能出现的~
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According to analysts, an alliance between three major personal computer companies and most of the nation's largest local telephone companies would enable customers to receive Internet data over regular telephone lines with speeds much higher than is currently possible. A. B. with speeds that are much higher than are C. at much higher speeds as are D. at much higher speeds than that E. at speeds much higher than are 　　考点1：比较的对象时态不同，后者不能省略时态，否则会导致歧义 (D-->wrong)　　speeds (that would be) much higher than (speeds that) are currently possible　　考点2：比较级 + than (C-->wrong)　　考点3：You drive the car AT a given speed not WITH a given speed. (AB-->wrong)　　想让9月GMAT机经来得更猛烈些？请戳>>
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A shipment of 8 television sets contains 2 black-and-white sets and 6color sets. If 2 television sets are to be chosen at random from this shipment, what is the probability that at least 1 of the 2 sets chosen will be a black-and-white set?
1/71/45/1411/2813/28
这是GWD的一道考题。 答案是E。
我的思路：
total 选择数：Ｃ８２　＝　２８
至少一个黑白：　Ｃ２１＝２；
其他的一个在剩下７个里面选，共７种可能
所以：　２×７＝１４
probility = 14/28 = 1/2
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用逆事件，至少有一个黑白的对立就是一个都没有，概率为6/8×5/7，即第一次从8个里可以挑6个非黑白的，第二次7个里有5个，再用1-6/8×5/7=13/28
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楼主，我来回答你。8个里面随机抽取2个，抽取的方法一共有C28 种，就是8!/2!*6!=28种。至少有一个是黑白，那么就两种情况，一种是抽一个黑白一个彩色，就是C12*C16=12种；另一种就是两个都是黑白，就是C22=1种。加起来就是13种，所以概率就是13/28啦。希望对你有帮助，可能还有更简单的方法，我暂时只想到这一种哦~
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同意二楼的，用对立事件做会更好
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楼上正解 ，求至少有一个黑白，反过来就是都是彩色的概率，然后1减这个概率， 都是彩色的概率 C2/6 / C2/8& &&&c2/6=6*5/1*2=15& & c2/8=8*7/1*2=28&&因此
C2/6 / C2/8 = 15/28&&所以至少有一个是黑白的概率为 ： 1- 15/28= 13/28&&答案为E
再按照楼主的思路来解释下：
我的思路：
total 选择数：Ｃ８２　＝　２８& && && &这里理解正确
至少一个黑白：　Ｃ２１＝２；& &&&出现错误。至少一个黑白则有两种可能：第 1种是一个黑白 ， C21=2&&剩下的只能在6个中选 所以c61=6 所以概率为 2*6/28=12/28 。
& && && && && && && && && && && && && && && && && && && && && && && && && && && && && && && && && &&&第 2种是两个都是黑白，只有一种选择方法 C22=1 概率是 1/28 ，所以至少有一个黑白的概率& && && &
& && && && && && && && && && && && && && && && && && && && && && && && && && && && && && && && && &&&是：第一种+第2种 12/28 + 1/28= 13/28 答案 依然为 E
其他的一个在剩下７个里面选，共７种可能
所以：　２×７＝１４
probility = 14/28 = 1/2
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这题这么做：让求至少包含一台黑白电视机。那么分两种情况：包含1台，包含2台
包含1台的抽法：C2 1*C6 1=12
包含2台的抽法：C2 2=1
一共13种抽法
因此是13除以C 8 2=13/28
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楼上正解 ，求至少有一个黑白，反过来就是都是彩色的概率，然后1减这个概率， 都是彩色的概率 C2/6 / C2/8&&...
太谢谢了。
但是就我自己的思路， 我还有点没有明白的是：
我认为一个球至少是黑白的那么这个球有2种可能；
剩下的那个球不用care它的颜色状况，所以有7种可能。
总共14种。
思维漏洞究竟在哪里呢？
再次感谢指点。
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楼主，我来回答你。8个里面随机抽取2个，抽取的方法一共有C28 种，就是8!/2!*6!=28种。至少有一个是黑白， ...
谢谢指点了。 一起加油！！！
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用逆事件，至少有一个黑白的对立就是一个都没有，概率为6/8×5/7，即第一次从8个里可以挑6个非黑白的，第二 ...
谢谢。 思路简洁。 非常感谢。
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本帖最后由 evelynizzy 于
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太谢谢了。
但是就我自己的思路， 我还有点没有明白的是：
除了黑白求剩下只有6种颜色，是6*2=12不是14哦~& && &
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