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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
23答疑

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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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[Sentence Correction]

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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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[OG20]

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Farmer: Several people in the past few years have claimed to have seen a mountain lion in the suburban outskirts—the latest just last month—and, while mountain lions were thought to have been driven from this entire region about twenty years ago, there is no reason for the people who reported seeing a mountain lion to have deliberately concocted a false report. Therefore, local wildlife managers should begin to urgently address the mountain lion's presence.

Which of the following would, if true, most seriously weaken the farmer's argument?

老师这道题我选到了B选项；一下是我的分析： 背景：好几个人在郊区看到了山地老虎，最近的一次是近几个月；背景2：多年前曾经发现过老虎；论点：人们没有理由说谎；结论：应该开始寻找老虎 题目要求：削弱 正确答案：C；我选了B C选项强调的应该是没有人是和其他人一起看到老虎的，所以没有证人 这个题我不太明白的点在于，C选项看上去有点驳斥原文给出的背景知识啊，题目说了不会说谎来着；我选择B的原因是郊区有和狮子非常类似的其他野生动物，所以有可能搞错。
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862浏览

[Undefined]

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Which of the following would it be most useful to know in order to evaluate the argument?
老师这道题我选到了B 我的分析是：背景：种植转基因庄稼的农民上季度没有买太多杀虫剂，产量和种植普通庄稼的农民差不多；普通庄稼更加便宜，并且其他费用也不贵；结论：种植转基因庄稼的农民不会获得额外的利润； 题目要求：评论 之所以没选D是因为D选项说的是有没有过量使用杀虫剂，但是原文不是说了杀虫剂用量不多来着。
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[Undefined]

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In 1776 Adam Smith wrote that it is young people who have “the contempt of risk and the presumptuous hope of success” needed to found new businesses.

请问金栩竹老师，这道题需要考虑时态问题吗？ who have 和后面的needed时态不一致
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[OG20]

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Rather than ignore a company that seems about to fail, investment analysts should recognize that its reorganization and recent uptick in revenue, combined with its dynamic new leadership, indicate that the firm's prospects must be taken seriously.
老师，我希望确认一下rather than和instead of的用法；这道题我选择了D因为我个人看句意感觉instead of更加准确；后来在网上看有同学的解析说instead of 和in place of 后面都是需要接名词而不是句子的，希望能确认下并了解他们的区别，谢谢
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[Undefined]

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The nephew of Pliny the Elder wrote the only eyewitness account of the great eruption of Vesuvius in two letters to the historian Tacitus.
请问金栩竹老师这道题怎么选呢？我选了B
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[Undefined]

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Which of the following, if true, would most seriously undermine the author's basis for saying that Wulf overstates Quaker schools' impact?
老师好，这题我选了E。我认为题目中的关键词是basis for saying，所以我认为应该同样注意16-17行之后的内容，而选项B只说了一年或两年，原文中要求的是三年，我不明白B选项为什么能反驳作者的basis呢？
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[GWD]

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It can be inferred from the passage that which of the following is the reason that the author faults the journalists referred to in the highlighted text?
这个题可以排除A B C 但是E是怎么选出来的？ 如果用结合原文的方法 E是怎么推断出来的呢？或者 老师答疑时提到的不看原文的方法 可以再讲讲对比选项是怎么选出E吗？
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[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.
B，C两个选项为什么错
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[OG19]

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The United Parcel Service plans to convert its more than 2,000 gasoline-powered trucks in the Los Angeles area to run on cleaner-burning natural gas.
请王文静老师讲解 这道题的B选项为什么不能选呀 之前您说修饰可以忽略 B选项主句就是convert 2000 trucks to run on natural gas 但A选项是convert 2000 gasoline-powered trucks to run on natural gas 当时就把A排除了 不知道思路对不对 希望您讲解一下这道题
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[Undefined]

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In the past, most children who went sledding in the winter snow in Verland used wooden sleds with runners and steering bars. Ten years ago, smooth plastic sleds became popular; they go faster than wooden sleds but are harder to steer and slow. The concern that plastic sleds are more dangerous is clearly borne out by the fact that the number of children injured while sledding was much higher last winter than it was 10 years ago.

Which of the following, if true in Verland, most seriously undermines the force of the evidence cited?
老师，我这道题读题目出现了问题，In the past和这个ten years ago，这两个时间点到底哪个在前我理解错了，导致直接把The concern that引起的那句话理解反了，理解成了事实证明木制的更危险…并基于这一点选了E。ps当时不知道borne out是证实的意思 我提问的核心是：In the past和这个ten years ago这两个时间点的先后是可判断的吗？即，一般而言，in the past要发生在ten years ago事件之前吗？
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