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题目：

On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.

选项:

A、On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow
B、On Earth, among the surest indications of sunspot cycles are, it is believed, the rate of tree growth
C、On Earth, the rate at which trees grow is believed to be among the surest indications of sunspot cycles
D、Among the surest indications on Earth of sunspot cycles, believed to be the tree growth rate
E、Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow

答案:

E
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题目：

According to recent studies comparing the nutritional value of meat from wild animals and meat from domesticated animals, wild animals have less total fat than do livestock fed on grain and more of a kind of fat they think is good for cardiac health.

选项:

A、wild animals have less total fat than do livestock fed on grain and more of a kind of fat they think is
B、wild animals have less total fat than livestock fed on grain and more of a kind of fat thought to be
C、wild animals have less total fat than that of livestock fed on grain and have more fat of a kind thought to be
D、total fat of wild animals is less than livestock fed on grain and they have more fat of a kind thought to be
E、total fat is less in wild animals than that of livestock fed on grain and more of their fat is of a kind they think is

答案:

B
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题目：

Starfish, with anywhere from five to eight arms, have a strong regenerative ability, and if one arm is lost it quickly replaces it, sometimes by the animal overcompensating and growing an extra one or two.

选项:

A、one arm is lost it quickly replaces it, sometimes by the animal overcompensating and
B、one arm is lost it is quickly replaced, with the animal sometimes overcompensating and
C、they lose one arm they quickly replace it, sometimes by the animal overcompensating,
D、they lose one arm they are quickly replaced, with the animal sometimes overcompensating,
E、they lose one arm it is quickly replaced, sometimes with the animal overcompensating,

答案:

B
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题目：

Heavy commitment by an executive to a course of action, especially if it has worked well in the past, makes it likely to miss signs of incipient trouble or misinterpret them when they do appear.

选项:

A、Heavy commitment by an executive to a course of action, especially if it has worked well in the past, makes it likely to miss signs of incipient trouble or misinterpret them when they do appear.
B、An executive who is heavily committed to a course of action, especially one that worked well in the past, makes missing signs of incipient trouble or misinterpreting ones likely when they do appear.
C、An executive who is heavily committed to a course of action is likely to miss or misinterpret signs of incipient trouble when they do appear, especially if it has worked well in the past.
D、Executives' being heavily committed to a course of action, especially if it has worked well in the past, makes them likely to miss signs of incipient trouble or misinterpreting them when they do appear.
E、Being heavily committed to a course of action, especially one that has worked well in the past, is likely to make an executive miss signs of incipient trouble or misinterpret them when they do appear.

答案:

E
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[Problem Solving]

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题目：

The charge for a single room at Hotel P  is 25 percent less than the charge for a single room at Hotel R  and 10 percent less than the charge for a single room at Hotel G . The charge for a single room at Hotel R  is what percent greater than the charge for a single room at Hotel G  ?

选项:

A、15%
B、20%
C、40%
D、50%
E、150%

答案:

B
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题目：

The remarkable similarity of Thule artifacts throughout a vast region can, in part, be explained as a very rapid movement of people from one end of North America to the other.

选项:

A、The remarkable similarity of Thule artifacts throughout a vast region can, in part, be explained as
B、Thule artifacts being remarkably similar throughout a vast region, one explanation is
C、That Thule artifacts are remarkably similar throughout a vast region is, in part, explainable as
D、One explanation for the remarkable similarity of Thule artifacts throughout a vast region is that there was
E、Throughout a vast region Thule artifacts are remarkably similar, with one explanation for this being

答案:

D
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题目：

A ruined structure found at Aqaba, Jordan, was probably a church, as indicated in its eastward orientation and by its overall plan, as well as artifacts, such as glass oil-lamp fragments, found at the site.

选项:

A、A ruined structure found at Aqaba, Jordan, was probably a church, as indicated in its eastward orientation and by its overall plan, as well as
B、A ruined structure found at Aqaba, Jordan, once probably being a church, was indicated by its eastward orientation, overall plan, and
C、Indicating that a ruined structure found at Aqaba, Jordan, was probably a church were its eastward orientation and overall plan, but also the
D、A ruined structure found at Aqaba, Jordan, was probably a church, as indicates its eastward orientation and overall plan, as well as the
E、That a ruined structure found at Aqaba, Jordan, was probably a church is indicated by its eastward orientation and overall plan, as well as by the

答案:

E
18答疑

[Critical Reasoning]

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题目：

In the year following an eight-cent increase in the federal tax on a pack of cigarettes, sales of cigarettes fell ten percent.  In contrast, in the year prior to the tax increase, sales had fallen one percent.  The volume of cigarette sales is therefore strongly related to the after-tax price of a pack of cigarettes.
 
The argument above requires which of following assumptions?

选项:

A、During the year following the tax increase, the pretax price of a pack of cigarettes did not increase by as much as it had during the year prior to the tax increase.
B、The one percent fall in cigarette sales in the year prior to tax increase was due to a smaller tax increase.
C、The pretax price of a pack of cigarettes gradually decreased throughout the year before and the year after the tax increase.
D、For the year following the tax increase, the pretax price of a pack of cigarettes was not eight or more cents lower than it had been the previous year.
E、As the after-tax price of a pack of cigarettes rises, the pretax price also rises.

答案:

D
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题目：

For protection from the summer sun, the Mojave lived in open-sided, flat-topped dwellings known as shades, each a roof of poles and arrowweed supported by posts set in a rectangle.

选项:

A、each a roof of poles and arrowweed
B、each a roof of poles and arrowweed that are being
C、with each being a roof of poles and arrowweed
D、with roofs of poles and arrowweed to be
E、with roofs of poles and arrowweed that are

答案:

A
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题目：

Even though Clovis points, spear points with longitudinal grooves chipped onto their faces, have been found all over North America, they are named for the New Mexico site where they were first discovered in 1932.

选项:

A、Even though Clovis points, spear points with longitudinal grooves chipped onto their faces, have been found all over North America, they are named for the New Mexico site where they were first discovered in 1932.
B、Although named for the New Mexico site where first discovered in 1932, Clovis points are spear points of longitudinal grooves chipped onto their faces and have been found all over North America.
C、Named for the New Mexico site where they have been first discovered in 1932, Clovis points, spear points of longitudinal grooves chipped onto the faces, have been found all over North America.
D、Spear points with longitudinal grooves that are chipped onto the faces, Clovis points, even though named for the New Mexico site where first discovered in 1932, but were found all over North America.
E、While Clovis points are spear points whose faces have longitudinal grooves chipped into them, they have been found all over North America, and named for the New Mexico site where they have been first discovered in 1932.

答案:

A
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685浏览

[Undefined]

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The Emperor Augustus, it appears, commissioned an idealized sculpture portrait, the features of which are so unrealistic as to constitute what one scholar calls an "artificial face."
老师您好！我想借这道题问一下so... as to的用法，想请老师详细讲一下它的意思和用法。它可以被理解为too... to...吗？和so...that...的区别又在哪里？是否还有so as to（三个词是连着的）的用法？谢谢老师！
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23242浏览

[GWD]

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Since 1975 so many people have been moving to Utah such that Mormons who were once 75 percent of the population are now only accounting for half of it.
老师好！我想借这道题问一下such that的用法（广泛来说），因为在好几道题都看到了such that，但都不确定它的意思和用法。请问我可以把它看作是“so”吗？或者“so that”？such that和so that（都连起来写）又有什么区别呢？
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1361浏览

[Undefined]

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According to the passage, which of the following best describes a function performed by oligosaccharins?
根据问题问了oli的作用，定位在最后一段。选了C 定位过程： 第一段说了five hormones，引出了与oli对比 第二段还是在说five h的的特点，每个h的作用很多且协同作用 第三段说了植物的five h和动物的h 的相似之处，通过研究动物发现了hierarchy of h 第四段说了hieraechy也存在于植物中，然后说了一下oli的作用 我选C是根据文章最后两句说了oil的 function来的 提问：我对文章脉络的理解正确吗？正确选项是如何得出的呢？
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3470浏览

[GWD]

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NASA's methodical approach to the exploration of Mars has not yet answered the questions of whether biological life forms ever emerged on Mars and whether, presuming such life forms having left fossil traces to begin with, those traces can still exist in some moist recesses of the cold and arid planet.
老师好！我想问一个通过这道题联想到的问题：whether, whether or not和if的用法，在GMAT语法题中，（1）是不是if只能当“如果”来使用且后面一定要接if的consequence？（2）是不是更倾向于单用whether而不加or not？谢谢老师！
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2585浏览

[OG]

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In an electric circuit, two resistors with resistances x and y are connected in parallel. In this case, if r is the combined resistance of these two resistors, then the reciprocal of r is equal to the sum of the reciprocals of x and y. What is r in terms of x and y?
问的题目在贴的图片上，想问下这道排列组合题目。我想通过求没有一对卡片的值相同，然后用总的可能的取值情况-没有一对卡片的值相同=至少一对值相同的卡片 在求解中，总量是C12 4，但是这个没有一对值相同的卡片的情况怎么算呢？ 请老师帮忙指点下
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648浏览

[Undefined]

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According to the passage, the rationalist and human relations schools of management are alike in that they
问题问的是 rational 和 human relations 这两个有什么相似之处 第一段有提到，TQM可以和两个老的管理系统联合（也就是和 rational 和human relations），但没有回答问题，所以答案不在第一段 第二段说 TQM没那么容易就和其他系统grafted了，反驳前面的结论。但后面也没提到问题所问的相似之处啊 请问如何得出答案A呢？以上的思考过程有误吗？
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2502浏览

[GWD]

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To be eligible for retirement benefits at the Omega Corporation, the sum of an employee's age, in years, and the number of years of employment must be at least 70. If x , where , is a certain employee's age when hired and y  is the minimum number of years of employment required for the employee to be eligible for retirement benefits, which of the following equations represents the relationship between x  and y  ?
请数学老师讲解 谢谢
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592浏览

[Undefined]

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According to the passage, which of the following is an accurate statement concerning meteor streams?
想问这一片文章的主旨是什么。 第一段：天文学家提出了假设陨石群会随着时间的增加扩宽；并且实验研究证实了这个假设；提出了一个传统理论：例子的分布是逐渐往陨石群中央变厚；而电脑模拟却相反 到了第二段：似乎在介绍什么流行出现的原理， 完全读不懂在干嘛，整盘文章崩了。 文章后面结尾说到实际的流星群有3000年的作用是什么...跟主旨没法联系。 求老师指点这篇文章
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286004浏览

[Undefined]

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Analytical!
ken老师你好，这道题目我的思路是设97、98、99依次为a、b、c，根据题目得出b=C+y; b=a+x。条件1）x>y，可以得出a<c。 第二个条件不太懂。而且这道题目的开始的的less、 more in 1999，这些术语我转化成公式就浪费了半个小时，想问老师有没有更高效的解决办法？
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6930浏览

[GWD]

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The three women, liberal activists who strongly support legislation in favor of civil rights and environmental protection, have consistently received labor's unqualifying support.
金老师，这道题我选了C，但是做题的时候有两个点很犹豫，首先是如何判断consistent应该修饰support还是修饰receive这个动作呢？另外，unqualifying和unqualified用法有啥区别吗？谢谢老师！！！
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