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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
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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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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[GWD]

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Both the Federal Reserve's decision that borrowing rates be raised, along with investor's speculation that another increase might be on the way, helped bolster the dollar in recent weeks by making deposits more attractive.
我当时是觉得要么都是that从句并列 要么都不用从句用介词连接并列 所以错选了E C中decision to和speculation that可以形成并列吗 请金老师解答一下
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[Undefined]

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Carbon-14 dating reveals that the megalithic monuments in Brittany are nearly 2,000 years as old as any of their supposed Mediterranean predecessors.
到底是两个一样老？还是一个比另一个老？ any of 在这里指代的是啥？
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[Undefined]

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A recently published report indicates that the salaries of teachers continue to lag far behind other college-educated professionals, because they make an average of nearly $8,000 a year less at the start of their careers and almost $24,000 less a year by the time they reach the age of 50.
请老师讲解下D为什么不对 到了DE我选不出来
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Organized in 1966 by the Fish and Wildlife Service, the Breeding Bird Survey uses annual roadside counts along established routes for monitoring of population changes of as many as, or of more than 250 bird species, including 180 songbirds.
老师您好，这道题我不是很有头绪，找不出突破点在哪错选了b，原因是use sth to do…，选了bc，然后就选错了。您能跟我分析一下解题思路吗，谢谢！
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2744浏览

[OG]

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In Western Europe, x bicycles were sold in each of the years 1990 and 1993. The bicycle producers of Western Europe had a 42 percent share of this market in 1990 and a 33 percent share in 1993. Which of the following represents the decrease in the annual number of bicycles produced and sold in Western Europe from 1990 to 1993?
这题难道是从90到93每年减少9％x吗？最后一句话说的annual number
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270347浏览

[Undefined]

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Analytical!
请数学老师解答条件2为什么可以
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[Undefined]

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Analytical!
请数学老师讲解 条件1为什么可行 谢谢
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270002浏览

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Analytical!
请数学老师讲解思路 谢谢
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[Undefined]

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The information in the passage suggests that which of the following statements from hypothetical sociological studies of change in industry most clearly exemplifies the social constructivists' version of technological determinism?
老师你好呀～ 这道题的意思是不是说用constructive观点去解释technology的观点呢？ 根据逻辑定位我觉得就是在第三段。C的态度是支持technology，但这道题C的态度无关。我读完第三段的感觉是在A，D纠结。第三段我认为说的是technology可以让人们的Skills等等那一串提高，这些不是Social可以做到的。这样子我就选了D。麻烦老师告诉我一下这个怎么定位。谢谢老师～
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[GWD]

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Capuchin monkeys often rub their bodies with a certain type of millipede.  Laboratory tests show that secretions from the bodies of these millipedes are rich in two chemicals that are potent mosquito repellents, and mosquitoes carry parasites that debilitate capuchins.  Some scientists hypothesize that the monkeys rub their bodies with the millipedes because doing so helps protect them from mosquitoes.
 
Which of the following, if true, provides the most support for the scientists' hypothesis?
这个d选项不吃这个虫子算不算排除他因？
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