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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：

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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733浏览

[Undefined]

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Which of the following best describes the purpose of the sentence in highlight text?
请问英吉老师，我理解的文章结构是对于测量某山高度这件事，英国人的方法balabala，然后中国人用3个方法减少了英国人方法的误差。为什么不可以选C呢？
1评分
1376浏览

[GWD]

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If y is an integer and y = ½x½ + x, is y = 0?
(1)   x ＜ 0
(2) y ＜ 1
t>The first
请问这个式子到底是个啥啊……1/2x1/2？这是什么神仙式子 完全没见过啊……
1评分
1466浏览

[GWD]

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How many years did Dr. Jones live?
(1)   If Dr. Jones had become a doctor 10 years earlier than he did, he would have been a doctor for exactly 2/3 of his life.
(2) If Dr. Jones had become a doctor 10 years later than he did, he would have been a doctor for exactly 1/3 of his life.
If Dr. Jones had become a doctor 10 years earlier than he did 这句话到底这么理解？已有的语音说得不明不白不清不楚的
2评分
1948浏览

[OG]

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It can be inferred from the passage that a study limited to patients like those mentioned in lines 20–22 would have which of the following advantages over the kind of study proposed by Frazier and Mosteller?
麻烦请王文静老师解答，谢谢。OG Reading Comprehension P409 第503题：According to the passage, which of the following describes a result of the way in which researchers generally conduct clinical trials? 正确答案给的是A，我错选了C。能够理解问题问的是 researchers general的试验行为导致的结果，但是认为C选项的意思也符合。选择理由定位到了原文(10)that researchers will overlook facts relevant to a study, 请问是否facts relevant to a study并不能换成variables？还是因为其他原因导致了C选项是错误的？谢谢您。
1评分
365浏览

[OG19]

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According to the passage, Daily sees monetization as an indication of which of the following?
A的centrality是咋来的？这句话应该如何理解？
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696浏览

[Undefined]

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A researcher computed the mean, the median, and the standard deviation for a set of performance scores. If 5 were to be added to each score, which of these three statistics would change?
老师，我这题看不懂，我以为他说那一条线段分为5分或者7份然后找最小差值，所以选了C，请May老师解答一下
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1066浏览

[Undefined]

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The passage is primarily concerned with
请问郭老师，这篇文章一直在讲这本书里K的观点主张，然后最后一段末尾，作者认为K低估了XX。像这种开始作者也没很支持K观点，最后又讲了K缺点的文章，请问作者究竟是支持还是反对还是中立？
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1776浏览

[GWD]

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Which of the following, if true, would most clearly support the contention attributed to SPEW in the highlighted text ?
老师，这道题我选的E，根据17-20行说的工厂的controllable conditions是导致工人中毒的原因，那么E说的是即使简单接触这个工厂的conditions就能导致中毒，这没错啊，为啥E不对
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1669浏览

[Undefined]

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The passage LEAST supports the inference that a manufacturer's throughput could be adversely affected by
这道题我选的B，我找的文章第11行后面的那些（The throughput needed ....也就是说后面说的那些原因都跟throughput有关系，而题问的是文章最不支持一下哪个对throughput有反向影响，d选项内容在后面出现，if throughput falls below...units costs rise sharply 也就是说throughputs降低 costs增加，这不是文章support的吗 那问什么会是least support，请老师详细讲下这道题
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3804浏览

[Undefined]

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Laos has a land area about the same as Great Britain but only four million in population, where many are members of hill tribes ensconced in the virtually inaccessible mountain valleys of the north.
这道题目最开始是拿老挝的国土面积跟英国的国土面积相比较，前面是laos has主谓结构，后面直接the same as great britian (has)不就可以了吗，省略has，为什么要 to that of great britain
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