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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

[Sentence Correction]

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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：

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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[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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1016浏览

[Official Advanced]

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The passage provides information to answer which of the following questions?
我理解12行的意思是这些书会被advertise 会被bookstores 订。 是一个平行关系。请问是哪里看出来的因果关系呢？ 而且这里B选项说的是persuade bookstores，但原句里没有说是和bookstore宣传，我理解的是向大众宣传。
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1014浏览

[Official Advanced]

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The passage provides information to answer which of the following questions?
您好我看答案说定位到这里：They will be heavily advertised and probably be among the books that most bookstores order in quantity. 这里的they指代的是被advertised
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623浏览

[Undefined]

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The Calex Telecommunications Company is planning to introduce cellular telephone service into isolated coastal areas of Caladia, a move which will require considerable investment.  However, the only significant economic activity in these areas is small-scale coffee farming, and none of the coffee farmers make enough money to afford the monthly service fees that Calex would have to charge to make a profit.  Nevertheless, Calex contends that making the service available to these farmers will be profitable.
Which of the following, if true, provides the strongest support for Calex's contention?
請問老師 這道題的中心是Calex contends that making the service available to these farmers will be profitable. 我理解的意思是Calex 可以從中獲益。 但是A選項説的是farmer如何獲益。
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1779浏览

[Official Advanced]

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If m and n are positive integers, what is the value of
  1. mn = 12
  2. is in lowest terms and is in lowest terms.
问一下may老师一道类似的题！（if m and n这一道）
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438浏览

[Undefined]

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If n is a positive integer and r is the remainder when 4 + 7n is divided by 3, what is the value of r ?
(1)n + 1 is divisible by 3.
(2)n > 20
想问下may老师 为什么这道题选A 而不是选C？ 假设n是odd的话 还是不确定even和odd的个数哪个比较多啊
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617浏览

[Undefined]

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In an effort to reduce their inventories, Italian vintners have cut prices; their wines have been priced to sell, and they are.
这题是不是好奇葩，最后一个they是指vintners是吗？they do 是说they reduce inventories吗？
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1161浏览

[GWD]

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The author mentions rhinoceroses and elephants (in the highlighted text) primarily in order to
這道題我首先排除ABD 和slot bear的被狩獵的處境沒有關係 然後糾結於C 和 E E這裏面定位到 Because sloth bears are smaller than brown and polar bears and are under greater threat from dangerous animals, they may have adopted the extra precaution of carrying their cubs. 這裏的 dangerous animals 就包括了 rhinoceroses and elephants 所以選了 E C的話感覺有一些小問題。 Collectively these factors probably selected against tree-climbing as a defensive strategy for sloth bear cubs.這裏定位到 sloth bears also coexist with and have been killed by tree-climbing leopards, and are often confronted and chased by rhinoceroses and elephants。 如果highlight的是leopards 的話我會選C， 但是 rhinoceroses and elephants 不會爬樹呀， 他只是confronted and chased slot bear。 tree-climbing 這兩個動物沒有關係。而且and are often 也説明leopards 和 rhinoceroses and elephants 是并列關係并不是因爲被追著打不得不去爬樹 然後樹上也有leopards 。 請問我這個邏輯有什麽問題麽？
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4324浏览

[GWD]

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During the past year, Pro-Tect Insurance Company's total payouts on car-theft claims were larger than the company can afford to sustain.  Pro-Tect cannot reduce the number of car-theft policies it carries, so cannot protect itself against continued large payouts that way.  Therefore, Pro-Tect has decided to offer a discount to holders of car-theft policies whose cars have antitheft devices.  Many policyholders will respond to the discount by installing antitheft devices, since the amount of the discount will within two years typically more than cover the cost of installation.  Thus, because cars with antitheft devices are rarely stolen, Pro-Tect's plan is likely to reduce its annual payouts.
 
In the argument above, the two portions in boldface play which of the following roles?
請問A選項在哪裏反映了whose effectiveness the argument assesses了呢？我因爲後半段這個排除A選項
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2015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.
老师您好 这道题 D选项 里面run修饰的是 a set of string，所以應該是單數形式吧？
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5710浏览

[GWD]

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Leaching, the recovery of copper from the drainage water of mines, as a method of the extraction of minerals, it was well established as early as the eighteenth century, but until about 25 years ago miners did not realize that bacteria take an active part in the process.
老师请问为什么A不可以 呢
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