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题目：

While digging in the Egyptian desert, huge fossil bones have been found by paleontologists, which appears to have been the second most massive dinosaur that ever lived.

选项:

A、huge fossil bones have been found by paleontologists, which appears to have been
B、huge fossil bones have been found by paleontologists, which appear to be from
C、it appears that paleontologists have found huge fossil bones that are from
D、paleontologists have found huge fossil bones from what appears to be
E、paleontologists have found huge fossil bones, which are from what appear to be

答案:

D
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题目：

Since February, the Federal Reserve has raised its short-term interest rate target five times, and because of the economy's continued strength, analysts have been predicting for weeks that the target will be raised again in November.

选项:

A、because of the economy's continued strength, analysts have been predicting for weeks that the target will
B、with the economy's strength continuing, analysts predicted for weeks that the target
C、because the economy continues strong, analysts predicted for weeks that the target would
D、due to the economy's continued strength, analysts have been predicting for weeks that the target
E、due to the fact of the economy's continued strength, analysts predicted for weeks that the target will

答案:

A
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The average hourly wage of television assemblers in Vernland has long been significantly lower than that in neighboring Borodia.  Since Borodia dropped all tariffs on Vernlandian televisions three years ago, the number of televisions sold annually in Borodia has not changed.  However, recent statistics show a droip in the number of television assemblers in Borodia.  Therefore, updated trade statistics will probably indicate that the number of televisions Borodia imports annually from Vernland has increased.
 
Which of the following is an assumption on which the argument depends?

选项:

A、The number of television assemblers in Vernland has increased by at least as much as the number of television assemblers in Borodia has decreased.
B、Televisions assembled in Vernland have features that televisions assembled in Borodia do not have.
C、The average number of hours it takes a Borodian television assembler to assemble a television has not decreased significantly during the past three years.
D、The number of televisions assembled annually in Vernland has increased significantly during the past three years.
E、The difference between the hourly wage of television assemblers in Vernland and the hourly wage of television assemblers in Borodia is likely to decrease in the next few years.

答案:

C
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题目：

Although improved efficiency in converting harvested trees into wood products
may reduce harvest rates, it will stimulate demand by increasing supply and
lowering prices, thereby boosting consumption.

选项:

A、in converting harvested trees into wood products may reduce harvest rates, it will stimulate demand by increasing supply and lowering prices, thereby boosting.
B、In converting harvested trees into wood products may reduce harvest rates, demand will be stimulated because of increasing supply and lowering prices, which boost.
C、Of converting harvested trees into wood products may reduce harvest  rates, it will stimulate demand by increasing supply and lowering prices, which boosts.
D、Of harvested trees being converted into wood products may reduce harvest rates, it will stimulate demand, because it will increase supply and lower prices, thereby boosting.
E、When harvested trees are converted into wood products may reduce harvest rates, demand will be stimulated because of increasing supply and lowering prices, which boost.

答案:

A
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题目：

Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.

选项:

A、Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
B、Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.
C、Vanished are nearly 99 percent of the five hundred million different species of living creatures that appeared on Earth.
D、Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.
E、Of the five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent have vanished.

答案:

E
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题目：

Among lower-paid workers, union members are less likely than nonunion members to be enrolled in lower-end insurance plans imposing stricter limits on medical services and requiring doctors to see more patients, and spend less time with each.
 

选项:

A、 imposing stricter limits on medical services and requiring doctors to see more patients, and spend
B、 imposing stricter limits on medical services, requiring doctors to see more patients, and spending
C、 that impose stricter limits on medical services, require doctors to see more patients, and spend
D、 that impose stricter limits on medical services and require doctors to see more patients, spending
E、 that impose stricter limits on medical services, requiring doctors to see more patients and spending

答案:

D
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For the last five years the Dutch economy has grown faster than Britain, France, or Germany, with the unemployment rate having remained well below that of the other three countries.

选项:

A、Britain, France, or Germany, with the unemployment rate having remained
B、have those of Britain, France, or Germany, and the unemployment rate remaining
C、have Britain, France, and Germany, and the unemployment rate has remained
D、the economy of Britain, France, and Germany, with the unemployment rate that has remained
E、the economies of Britain, France, and Germany, and the unemployment rate has remained

答案:

E
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题目：

In California today, Hispanics under the age of eighteen account for more than 43 percent, compared with a decade ago, when it was about 35 percent.

选项:

A、In California today, Hispanics under the age of eighteen account for more than 43 percent, compared with a decade ago, when it was about 35 percent.
B、Of the Californians under the age of eighteen, today more than 43 percent of them are Hispanic, compared with a decade ago, when it was about 35 percent.
C、Today, more than 43 percent of Californians under the age of eighteen are Hispanic, compared with about 35 percent a decade ago.
D、Today, compared to a decade ago, Californians who are Hispanics under the age of eighteen account for more than 43 percent, whereas it was about 35 percent.
E、Today, Hispanics under the age of eighteen in California account for more than 43 percent, unlike a decade ago, when it was about 35 percent.

答案:

C
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题目：

The first trenches that were cut into a 500-acre site at Tell Hamoukar, Syria, have yielded strong evidence for centrally administered complex societies in northern regions of the Middle East that were arising simultaneously with but independently of the more celebrated city-states of southern Mesopotamia, in what is now southern Iraq.

选项:

A、that were cut into a 500-acre site at Tell Hamoukar, Syria, have yielded strong evidence for centrally administered complex societies in northern regions of the Middle East that were arising simultaneously with but
B、that were cut into a 500-acre site at Tell Hamoukar, Syria, yields strong evidence that centrally administered complex societies in northern regions of the Middle East were arising simultaneously with but also
C、having been cut into a 500-acre site at Tell Hamoukar, Syria, have yielded strong evidence that centrally administered complex societies in northern regions of the Middle East were arising simultaneously but
D、cut into a 500-acre site at Tell Hamoukar, Syria, yields strong evidence of centrally administered complex societies in northern regions of the Middle East arising simultaneously but also
E、cut into a 500-acre site at Tell Hamoukar, Syria, have yielded strong evidence that centrally administered complex societies in northern regions of the Middle East arose simultaneously with but

答案:

E
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题目：

The market for recycled commodities like aluminum and other metals remain strong despite economic changes in the recycling industry.

选项:

A、commodities like aluminum and other metals remain
B、commodities like those of aluminum and other metals are remaining
C、commodities such as aluminum and other metals remains
D、commodities, such as aluminum and other metals, remain
E、commodities, like the commodities of aluminum and other metals, remains

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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[Undefined]

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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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[GWD]

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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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[Undefined]

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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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[Undefined]

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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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[Undefined]

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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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