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题目：

The World Wildlife Fund has declared that global warming, a phenomenon most scientists agree to be caused by human beings in burning fossil fuels, will create havoc among migratory birds by altering the environment in ways harmful to their habitats.

选项:

A、a phenomenon most scientists agree to be caused by human beings in burning fossil fuels,
B、a phenomenon most scientists agree that is caused by fossil fuels burned by human beings,
C、a phenomenon that most scientists agree is caused by human beings' burning of fossil fuels,
D、which most scientists agree on as a phenomenon caused by human beings who burn fossil fuels,
E、which most scientists agree to be a phenomenon caused by fossil fuels burned by human beings,

答案:

C
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题目：

To map Earth’s interior, geologists use a network of seismometers to chart seismic waves that originate in the earth’s crust and ricochet around its interior, most rapidly traveling through cold, dense regions and slower through hotter rocks.

选项:

A、interior, most rapidly traveling through cold, dense regions and slower
B、interior, which travel most rapidly through cold, dense regions, and more slowly
C、interior, traveling most rapidly through cold, dense regions and more slowly
D、interior and most rapidly travel through cold, dense regions, and slower
E、interior and that travel most rapidly through cold, dense regions and slower

答案:

C
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题目：

After several years of rapid growth, the healthy care company became one of the largest health care providers in the metropolitan area, while it then proved unable to handle the increase in business, falling months behind in its payment to doctors and hospitals.

选项:

A、while it then proved unable to handle the increase in business, falling months behind in its payment to
B、while it then proved unable to handle the increase in business and fell months behind in its payment to
C、but then it proved unable to handle the increase in business, falling months behind in its paying
D、but then proving unable to handle the increase in business, falling months behind in paying
E、but then proved unable to handle the increase in business, falling months behind in paying

答案:

E
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题目：

To Josephine Baker, Paris was her home long before it was fashionable to be an expatriate, and she remained in France during the Second World War as a performer and an intelligence agent for the Resistance.

选项:

A、To Josephine Baker, Paris was her home long before it was fashionable to be an expatriate,
B、For Josephine Baker, long before it was fashionable to be an expatriate, Paris was her home,
C、Josephine Baker made Paris her home long before to be an expatriate was fashionable,
D、Long before it was fashionable to be an expatriate, Josephine Baker made Paris her home,
E、Long before it was fashionable being an expatriate, Paris was home to Josephine Baker,

答案:

D
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题目：

According to analysts, an alliance between three major personal computer companies and most of the nation's largest local telephone companies would enable customers to receive Internet data over regular telephone lines with speeds much higher than is currently possible.

选项:

A、with speeds much higher than is
B、with speeds that are much higher than are
C、at much higher speeds as are
D、at much higher speeds than that
E、at speeds much higher than are

答案:

E
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题目：

Running at their respective constant rates, machine X takes 2 days longer to produce w widgets than machine Y. At these rates, if the two machines together produce 5/4 w widgets in 3 days, how many days would it take machine X alone to produce 2w widgets?

选项:

A、4
B、6
C、8
D、10
E、12

答案:

E
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题目：

The greatest road system built in the Americas prior to the arrival of Christopher Columbus was the Incan highway, which, over 2,500 miles long and extending from northern Ecuador through Peru to Southern Chile.

选项:

A、Columbus was the Incan highway, which, over 2,500 miles long and extending
B、Columbus was the Incan highway, over 2,500 miles in length, and extended
C、Columbus, the Incan highway, which was over 2,500 miles in length and extended
D、Columbus, the Incan highway, being over 2,500 miles in length, was extended
E、Columbus, the Incan highway was over 2,500 miles long, extending

答案:

E
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题目：

A recent review of pay scales indicates that CEO's now earn an average of 419 times more pay than blue-collar workers, compared to a ratio of 42 times in 1980.

选项:

A、 that CEO's now earn an average of 419 times more pay than blue-collar workers, compared to a ratio of 42 times
B、 that, on average, CEO's now earn 419 times the pay of blue-collar workers, a ratio that compares to 42 times
C、 that, on average, CEO's now earn 419 times the pay of blue-collar workers, as compared to 42 times their pay, the ratio
D、 CEO's who now earn on average 419 times more pay than blue-collar workers, as compared to 42 times their pay, the ratio
E、 CEO's now earning an average of 419 times the pay of blue-collar workers, compared to the ratio of 42 times

答案:

C
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题目：

According to a survey of graduating medical students conducted by the Association of American Medical Colleges, minority graduates are nearly four times more likely than are other graduates in planning to practice in socioeconomically deprived areas.

选项:

A、minority graduates are nearly four times more likely than are other graduates in planning to practice
B、minority graduates are nearly four times more likely than other graduates who plan on practicing
C、minority graduates are nearly four times as likely as other graduates to plan on practicing
D、it is nearly four times more likely that minority graduates rather than other graduates will plan to practice
E、it is nearly four times as likely for minority graduates than other graduates to plan to practice

答案:

C
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题目：

In an attempt to guarantee the security of its innovative water purification method, the company required each employee to sign a confidentiality agreement prohibiting that its water purification methods be disclosed to companies using an analogous purification process.

选项:

A、prohibiting that its water purification methods be disclosed to companies
B、prohibiting them from the disclosing of its water purification methods to any company
C、prohibiting disclosure of its water purification methods to any company
D、that would prohibit them from disclosure of its water purification methods to companies
E、that would prohibit its water purification methods to be disclosed to a company

答案:

C
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Running at their respective constant rates, machine X takes 2 days longer to produce w widgets than machine Y. At these rates, if the two machines together produce 5/4 w widgets in 3 days, how many days would it take machine X alone to produce 2w widgets?
提问小梅老师：问题请看图片
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If P(r)=8r/(1-r), for what value of r does P(r)=1/2(P(3))?
提问小梅老师：这道题我算的结果为-3 是不是答案错了？
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Reid took 1 hour to cycle from his home to his college.

The graph shows Reed's distance from his college during
That hour. Reid's average speed for the last 15 minutes
Of the hour was how many kifometers per hour greater
Than his average speed for the first 45 minutes?
提问小梅老师：这道题系统里没有答案 我算的B 是否正确？
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AB
In the correctly worked addition problem shown, where
the sum of the two-digit positive integers AB and BA is
the three-digit integer AAC, and A, B, and C are different digits, what is the units digit of the integer AAC?
提问小梅老师：这道题答案是不是c=0 A是1 B是9 只有这一种情况满足 答案错误？
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For a certain race, 3 teams were allowed to enter 3 members each. A team earned points whenever one of its members finished in nth place, where .  There were no ties, disqualifications, or withdrawals.  If no team earned more than 6 points, what is the least possible score a team could have earned?
提问小梅老师： 这道题答案是不是3？ 系统给的提问小梅老师：4 错了吧 我看您讲解是3 因为总15 2组最大是6 第三组最小是3
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If ½d - 9½ = 2d, then d =o-fareast
提问小梅老师：这道题答案有问题吧 给的D 我做的结果是B-3
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If k is a positive integer, is k the square of an integer?
(1)   k is divisible by 4.
(2) k is divisible by exactly 4 different prime numbers.
提问小梅老师：老师这道题我也觉得有争议 主要是条件2的理解 它的意思如果是k有4个不同的质因子 那就选E；但是我的理解是k由4个不同的质数相乘 那它一定不是一个数的平方 所以我就选的B
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Juan bought some paperback books that cost $8 each and some hardcover books that cost $25 each. If Juan bought more than 10 paperback books, how many hardcover books did he buy?
(1)   The total cost of the hardcover books that Juan bought was at least $150.
(2)   The total cost of all the books that Juan bought was less than $260.
请小梅老师回答一下：老师这道题您看一下 我算出来是E 我觉得hard 可以是3/4/5/6 两个条件和一起也不能求出。
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[Undefined]

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Analytical!
为什么答案是C啊，第二个式子取n=1是不对的吧
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If –2x ＞ 3y, is x negative?

(1) y ＞ 0

(2) 2x + 5y – 20 = 0
问一下小梅老师 这道题条件二 我只能得出2x小于-3y 带入条件二 -3y+5y-20小于0 2y小于20 y小于10 无法得出x是否为负。
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