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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
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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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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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2582浏览

[Undefined]

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 If s + S ≠ 0 and 13 = 14s-Ss+S , then what is s in terms of S ? 
一道机经：本题最后等比性质的等式如何理解 m+n=2p aman=p平方 不知道如何转换
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1406浏览

[OG19]

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If p, s, and t are positive, is |ps – pt| > p(s – t) ?
  1. p < s
  2. s < t
一道机经：我画的是t型图思路在照片里我觉得求不出那个问号啊 我用t图做选E 为什么网友解析选c呢 是这道题不能用t图做吗

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419浏览

[Undefined]

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Situation: For five years the Souper restaurant chain has maintained rapid sales growth in Danport, primarily by opening new restaurants that draw patrons away from other restaurants in their vicinity.

Goal: Souper wishes to achieve continued rapid sales growth in Danport over the next two years.

Proposal for consideration: Continue to open new restaurants in Danport during the next two years at the same rate as in the last two years.

In light of the situation, which of the following, if true, most strongly argues that adopting the proposal would be an ineffective way of achieving the goal?
请问张慧雯老师，本题逻辑链：目标：Souper希望在未来两年内，在D市实现销售的持续快速增长。建议：在未来两年内，继续在D市开设新的餐厅，速度与过去两年相同。本题在cd中纠结，问题集中在c，Souper餐厅提供的食物种类一般比附近的其他餐厅少得多，就说明他就算新开了很多店也没有竞争力啊，为什么c不对呢
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2412浏览

[Undefined]

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In the figure above, if x and y are each less than 90 and PS || QR, is the length of segment PQ less than the length of segment SR ?
(1) X>y
(2) X + y > 90

一道机经：我觉得这里条件二应该是t一定＞0啊 TV异号如果t小于0的那v＞0那和已知条件t＞v违背了啊 虽然都选B但是想知道我的理解有没有问题 或者网友解析是否有误
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931浏览

[Undefined]

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 In the figure below, ΔPST is an isosceles right triangle, and PS = 2. What is the area of the shaded region URST ?
 
一道机经：为什么最后还要16分之一*4呢
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2408浏览

[Official Advanced]

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A rectangle P Q R S has a point labeled T on its base P Q. Two lines are drawn from a point T to the top vertices Q and R.

In rectangular region PQRS above, T is a point on side PS. If PS = 4, what is the area of region PQRS ?

  1. ∆QTR is equilateral.
  2. Segments PT and TS have equal length.

一道机经题：我觉得本题选B，网友解析选E感觉本题前后解析不一致，想请老师看看这题是不是答案有问题
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2408浏览

[Official Advanced]

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A rectangle P Q R S has a point labeled T on its base P Q. Two lines are drawn from a point T to the top vertices Q and R.

In rectangular region PQRS above, T is a point on side PS. If PS = 4, what is the area of region PQRS ?

  1. ∆QTR is equilateral.
  2. Segments PT and TS have equal length.

一道机经：如何判断他是否要考虑顺序呢？a3的五次方如何理解
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1873浏览

[Undefined]

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Paint on a new airliner is usually applied in two stages: first, a coat of primer, and then a top coat. A new process requires no primer, but instead uses two layers of the same newly developed coating, with each layer of the new coating having the same thickness and weight as a traditional top coat. Using the new process instead of the old process increases the price of a new aircraft considerably.
Which of the following, if true, most strongly indicates that it is in an airline's long-term economic interest to purchase new airliners painted using the new process rather than the old process?
请问张慧雯老师，本题为什么D 不对？他不是说可以忍耐极端气温吗应该也是一个新方法的优势，而且为什么load-bearing capacity和长期经济目标有关呢？
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2353浏览

[Undefined]

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The passage suggests which of the following about the ring patterns of two trees that grew in the same area and that were of different, but overlapping, ages?
请问张慧雯老师，本题定位 Often, ring patterns of dead trees of different, but overlapping, ages can be correlated to provide an extended index of past climate conditions.如何得出A呢？
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460浏览

[Undefined]

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It can be inferred from the passage that proponents of the view mentioned in the first highlighted text believe which of the following about the origin of Algonquian family hunting territories?
请问张慧雯老师，题目问的是A的起源，定位点family hunting territories, like other forms of private landownership, were not found among Algonquians (a group of North American Indian tribes) before contact with Europeans 我重点看了转折后面的内容but are the result of changes in Algonquian society brought about by the European-Algonquian fur trade, in combination with other factors such as ecological changes and consequent shifts in wildlife harvesting patterns.所以就把D排除了，想请老师理一下本题的句间关系。
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