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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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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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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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1139浏览

[Official Advanced]

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Some theorists and critics insist that no aesthetic evaluation of a work of art is sound if it is based even in part on data about the cultural background of the artist. This opinion is clearly false. The only sound aesthetic evaluations of artists’ works are those that take into account factors such as the era and the place of the artists’ births, their upbringing and education, and the values of their societies—in sum, those factors that are part of their cultural background.

The above argument is most vulnerable to which of the following objections?

原题说：评论家说，如果即使美学的评论基于艺术家的文化背景，它是没有道理的。作者反对这个观点，说唯一有道理的美学评论是将这些乱七八糟的背景作为考量，而这些乱七八糟的东西是包括在文化背景里的。让我反驳这个作者。a这个选项说的特别不像人话，我看不太懂，麻烦老师给我讲讲。类似有这样的题目可以给我参考一下吗？谢谢老师解答。
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3353浏览

[OG20]

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Self-compassion is made up of mindfulness, the ability to manage thoughts and emotions without being carried away or repressing them, common humanity, or empathy with the suffering of others, and self-kindness, a recognition of your own suffering and a commitment to solving the problem.
请问下tina老师，这道题我觉得蛮奇怪的。这个分号我以为是等于句号的。然后我首先排除了cd，因为分号结尾。我感觉这是一题考分号和平行的。 我错选了a。。。 这道题的平行我觉得有点点难看。。然后求分析一下这题。
2评分
21622浏览

[OG]

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A professor at the university has taken a sabbatical to research on James Baldwin’s books that Baldwin wrote in France while he was living there.
请问Tina老师，a为什么错了，我看了别人的提问，说research作动词之后加名词。 但是。。。research做动词后面也能加介词啊。 。。。。。。。。。所以a为什么错了。 然后我想说下我现在og大概20题错5题。就是会连续错三题这种。做到一半思路会飘。。。这种咋办。。
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1950浏览

[GWD]

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The figure above shows the dimensions of a semicircular cross section of a one-way tunnel. The single traffic lane is 12 feet wide and is equidistant from the sides of the tunnel.  If vehicles must clear the top of the tunnel by at least ½ foot when they are inside the traffic lane, what should be the limit on the height of vehicles that are allowed to use the tunnel?

这道题的题意不理解求老师解答。
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2072浏览

[Undefined]

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Researchers now regard interferon as not a single substance, but it is rather a biological family of complex molecules that play an important, though not entirely defined, role in the immune system.
老师好，想问一下D not to be, but rather 可以理解成not to be, but rather（to be ）么？如果不能为什么？另外but 和rather是重复么 对比C\D，molecules 后面加从句和playing有什么区别么，谢谢老师？
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6960浏览

[OG]

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The Life and Casualty Company hopes that by increasing its environmental fund reserves to $1.2 billion, that it has set aside enough to pay for environmental claims and no longer has to use its profits and capital to pay those claims bit by bit, year by year.
请问下金老师，这题我本来选e的，但是我有个很纠结的地方。the life and company不是应该用复数吗？然后这个e里has和have一个单数一个复数。 abc排除的原因应该是这里需要直接出主语是不？ 这个c是and后面跟完整句子？
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522浏览

[Undefined]

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The passage suggests that Twigg believes that rats could not have spread the Black Death unless which of the following were true?
如何定位呢？
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3747浏览

[Undefined]

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Unlike the virginal, whose single set of strings runs parallel to the front edge of the instrument, the harpsichord’s several sets of strings are placed at right angles to its front edge.
请问下金老师，这题我从are入手，因为这个东西是被放置，所以排除了d。 b是它这样写with就变成harpsichord的修饰了，所以不对。 然后a或许是因为whose？这个virginal不算抽象名词的样子 总之cde我是没有懂。深深的那种
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1894浏览

[OG19]

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Travelers from Earth to Mars would have to endure low levels of gravity for long periods of time, avoiding large doses of radiation, plus contending with the chemically reactive Martian soil, and perhaps even ward off contamination by Martian life-forms.
请问下王文静老师， 这题我选了d。 排除a，是我觉得这个语意上avoid和content也很重要。 排除b是我觉得这个并列关系不是很对吧。划线句内是动词并列我可以理解，这个划线句后面这个and perhaps我就不明白了。用and的时候不是在最后一个并列对象前加，and吗，那这个perhaps和前面的动词不并列啊。 c么，一塌糊涂。 d的话，我才想plus contend的plus等于and，那我觉得蛮对。语意上比起endure我觉得avoid更重要吧。 e里mars不能用who，who形容人。 所以我就不明白了。
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8778浏览

[Undefined]

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Hurricanes at first begin traveling from east to west, because that direction is the way the prevailing winds in the tropics blow, but they then veer off toward higher latitudes, in many cases changing direction toward the east before dissipating over the colder, more northerly waters or over land.
这道题我排除到bc，很奇怪噢。 请问下Tina老师，我想的c是the direction这句是前一句的同位语，解释说明它的。然后一开始有个while表转折。 and我没看到，如果这里没有and的话对嘛
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