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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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1059浏览

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How many prime numbers between 1 and 100 are factors of 7,150 ?
录音中说有5个质因子，重复的也算，但是答案是D。到底重复的算不算呢。
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What is the greatest common factor of the positive integers j  and k ?
(1)     k  = j  + 1
(2)     jk  is divisible by 5.
DS题一个条件能解决问题的定义到底是怎样的呢？我记得以前老管好像说的是能做出具体的数值，且答案唯一才叫解决问题啊。可是这道题第一个条件只能知道最大公因子是kj, 不知道k和j的具体值无法解决问题啊。
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[GWD]

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Of the 60 animals on a certain farm, are either pigs or cows.  How many of the animals are cows?
(1)   The farm has more than twice as many cows as it has pigs.
(2)   The farm has more than 12 pigs.
根据题目条件+（1）和（2），列出如下三式： 1.P+C=40； 2.P>2C; 3.P>12. 问题求C=？ 思路：解出C<40/3，则C可以取比14小的正整数，满足此条件且满足P>12的C有很多啊，并不确定，所以选了E，如何能选出C？
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If x and y are positive integers and r is the remainder when is divided by 10, what is the value of r ?
(1) x = 25
(2)  y = 1
为什么不知道x的情况下也能求余呢？ 请老师解答~
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[GWD]

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In triangle ABC, point X  is the midpoint of side AC  and point Y  is the midpoint of side BC . If point R  is the midpoint of line segment XC  and if point S  is the midpoint of line segment YC , what is the area of triangular region RCS  ?
(1)   The area of triangular region ABX  is 32.
(2)   The length of one of the altitudes of triangle ABC  is 8.
ds
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If d = is expressed as a terminating decimal, how many nonzero digits will d have?
无思路。。。望老师帮助~
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Company S produces two kinds of stereos:  basic and deluxe.  Of the stereos produced by Company S last month,  2/3 were basic and the rest were deluxe.  If it takes 7/5 as many hours to produce a deluxe stereo as it does to produce a basic stereo, then the number of hours it took to produce the deluxe stereos last month was what fraction of the total number of hours it took to produce all the stereos?N
老师，这题看不懂题目。之前的录音貌似也听不了。 如果考场碰到这种读的乱七八糟的题目怎么办？谢谢
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[GWD]

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If n is a positive integer and r is the remainder when (n-1)(n+1) is divided by 24, what is the value of r?
(1)     2 is not a factor of n.
(2)     3 is not a factor of n.
老师请讲下这类题的解题思路，谢谢
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A box contains 10 light bulbs, fewer than half of which are defective. Two bulbs are to be drawn simultaneously from the box.  If n of the bulbs in box are defective, what is the value of n?
(1)   The probability that the two bulbs to be drawn will be defective is 1/15.
(2) The probability that one of the bulbs to be drawn will be defective and the other will not be defective is 7/15.
老师您好：此题我选B，答案是D，求解答。 我的思路如下： 原文翻译：盒里有10个灯，小于一半的是坏的。同时取两个。问几个灯是坏的？ 条件A：两个灯都是坏的的概率是1/15 条件B：一个灯坏了，一个没有坏的概率是7/15 1，因为从10个中取两个，所以分母是C（2,10）=45 2，条件一：要求两个都是坏的，分子是：C（1，n）*C（1，n-1）。计算得出n*（n-1）=3.因为n必须是整数，所以条件一不行。 3，条件二：要求一个好一个坏，所以分母是C（1，n）*C（1,10-n）。计算得出n*（10-n）=21.那么n=3，条件二可以。 选B。
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[Undefined]

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Most household appliances use electricity only when in use.  Many microwave ovens, however, have built-in clocks and so use some electricity even when they are not in use.  The clocks each consume about 45 kilowatt-hours per year.  Therefore, households whose microwave oven has no built-in clock use 45 kilowatt-hours per year less, on average, than do comparable households whose microwave oven is otherwise similar but has a built-in clock.
Which of the following is an assumption on which the argument depends?
cr
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