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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
20答疑

[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
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[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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1878浏览

[Undefined]

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The survival of coral colonies, which are composed of innumerable tiny polyps living in a symbiotic relationship with brilliantly colored algae, are being threatened, experts say, not only by pollutants like agricultural runoff, oil slicks, and trash, but also by dropped anchors, probing divers, and global warming.
A哪里错了？？
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1357浏览

[Undefined]

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The authors’ study indicates that, in comparison with the outermost regions of a typical spiral galaxy, the region just outside the nucleus can be characterized as having
这篇文章都看不太懂 所以感觉根本答不了 不明白在哪找 这一般是什么分数段的难度
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814浏览

[OG]

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Which of the following hypothetical experiments most clearly exemplifies the method of identifying species’ roles that the author considers problematic?
老师， 我这种Application类型和这篇文章下一题都就是evaluation的类型， 总是出错 ，是什么原因？ 怎么提升呢？ 另外这道题我在c和d 纠结 ，选 D项是因为我觉得是因为最后一句话说了particular geography什么的
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4169浏览

[OG]

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In Stenland, many workers have been complaining that they cannot survive on minimum wage, the lowest wage an employer is permitted to pay. The government is proposing to raise the minimum wage. Many employers who pay their workers the current minimum wage argue that if it is raised, unemployment will increase because they will no longer be able to afford to employ as many workers.

Which of the following, if true in Stenland, most strongly supports the claim that raising the minimum wage there will not have the effects that the employers predict?
我错选了C:因为通货膨胀，增加后的实际最低工资比现在的最低工资低→所以公司负担得起→削弱了原文的前提。求分析逻辑链的漏洞。
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1547浏览

[GWD]

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In the past, every ten-percentage-point increase in cigarette prices in the country of Coponia has decreased per capita sales of cigarettes by four percent.  Coponia is about to raise taxes on cigarettes by 9 cents per pack.  The average price of cigarettes in Coponia is and has been for more than a year 90 cents per pack.  So the tax hike stands an excellent chance of reducing per capita sales of cigarettes by four percent.
 
Which of the following is an assumption on which the argument depends?
错选B。1，不知道为什么b不对。感觉a无关。2，逻辑链是，过去烟价格增长10，销量就降4。然后现在烟价格要增长10，说销量会依旧降4。对吗？3，这种题具体做题方法是什么？选项应该支撑结论吗？请老师依次回答，谢谢
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925浏览

[OG18]

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Bouquets are to be made using white tulips and red tulips, and the ratio of the number of white tulips to the number of red tulips is to be the same in each bouquet. If there are 15 white tulips and 85 red tulips available for the bouquets, what is the greatest number of bouquets that can be made using all the tulips available?
我选的a 可以给我解释一下 为什么是b 吗
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6284浏览

[Undefined]

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A surge in new home sales and a drop in weekly unemployment claims suggest that the economy might not be as weak as some analysts previously thought.
a选项 as weak as 前后比较对象是什么？ economy和previously thought比嘛？
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3582浏览

[OG18]

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Before 1988, insurance companies in California were free to charge whatever rates the market would bear, needing no approval from regulators before raising rates.
我想把做这道题的思路和老师交流一下。读完原句，语义是保险公司可以收任何rates，与此同时不需要在涨rates前得到监管者的同意。第一步，发现表达的意思前后句是附属修饰关系，杀bc。第二步，de中need动词发起者都变成了regulators，d表达的意思是approval被regulator需要；e表达没有approval被需要从regulators。而语义上面应该是保险公司不需要。所以杀了de，留下a。请老师解答。
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3471浏览

[GWD]

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Often patients with ankle fractures that are stable, and thus do not require surgery, are given follow-up x-rays because their orthopedists are concerned about possibly having misjudged the stability of the frac- ture. When a number of follow-up x-rays were reviewed, however, all
the fractures that had initially been judged stable were found to have healed correctly. Therefore, it is a waste of money to order follow-up
x-rays of ankle fracture initially judged stable.
 
Which of the following, if true, most strengthens the argument?
老师 题干哪里有交代第一次xray了呢？
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21540浏览

[Undefined]

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The Achaemenid empire of Persia reached the Indus Valley in the fifth century B.C., bringing the Aramaic script with it, from which was derived both northern and southern Indian alphabets.
老师我追问一下，嗯我确认没有看出来时谁derive from 谁。如果是D的话，手稿derives from alphabet 逻辑上应该是合适的呀？因为确实没有背景知识知道谁起源谁.... 是我思考的方式不对吗？
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