问答

1答疑

[Sentence Correction]

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题目：

Seldom more than 40 feet wide and 12 feet deep, but it ran 363 miles across the rugged wilderness of upstate New York, the Erie Canal connected the Hudson River at Albany to the Great Lakes at Buffalo, providing the port of New York City with a direct water link to the heartland of the North American continent.

选项:

A、Seldom more than 40 feet wide and 12 feet deep, but it ran 363 miles across the rugged wilderness of upstate New York, the Erie Canal connected
B、Seldom more than 40 feet wide or 12 feet deep but running 363 miles across the rugged wilderness of upstate New York, the Erie Canal connected
C、It was seldom more than 40 feet wide and 12 feet deep, and ran 363 miles across the rugged wilderness of upstate New York, but the Erie Canal, connecting
D、The Erie Canal was seldom more than 40 feet wide or 12 feet deep and it ran 363 miles across the rugged wilderness of upstate New York, which connected
E、The Erie Canal, seldom more than 40 feet wide and 12 feet deep, but running 363 miles across the rugged wilderness of upstate New York, connecting

答案:

B
1答疑

[Reading Comprehension]

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文章：

Line Arboria is floundering in the global marketplace,
incurring devastating losses in market position and
profits. The problem is not Arboria's products, but
Arboria's trade policy. Arboria faces the prospect
(5) of continuing economic loss until Arborian business
and political leaders recognize the fundamental
differences between Arborian and foreign economic
systems. Today the key trade issue is not free trade
versus protectionism but diminishing trade versus
(10) expanding trade.
Arboria is operating with an obsolete trade policy,
an artifact of the mid-1940s when Arboria and
Whorfland dominated the global economy, tariffs
were the principal obstacle to trade, and Arborian
(15) supremacy was uncontested in virtually all industries.
In the intervening decades, economic circumstances
have shifted radically. Arborian trade policy has not.
Today, Arboria's trade policy seems paralyzed
by the relentless conflict between proponents of
(20) “free” and “fair” trade. The free traders argue that
Arborian markets should be open, and the movement
of goods and services across national borders
unrestrained. The fair traders assert that access to
Arborian markets should be restricted until Arborian
(25) businesses are granted equal access to foreign
markets. They contend that free trade is impossible
while other nations erect barriers to Arborian exports.
Both are correct: fair trade requires equal access
and equal access leads to free trade. But both sides
(30) base their positions on the same two outdated
premises:
1. Global commerce is conducted under the terms of
the General Agreement on Tariffs and Trade (GATT)
and dominated by Arboria and similar economic
(35) systems abroad.
2. Multilateral negotiations are the most effective way
to resolve pressing trade issues.
Both assumptions are wrong. The 40-year-old GATT
now covers less than 7 percent of global commerce.
(40) World trade is no longer dominated by the free-
trade economies; nearly 75 percent is conducted
by economic systems operating with principles at
odds with those of Arboria. Forging a multilateral
trade policy consensus among so many diverse
(45) economic systems has become virtually impossible.
And while multilateral talks drag on, Arboria misses
opportunities for trade expansion.

题目：

The author implies that the main obstacle to a truly effective Arborian trade policy is the

选项:

A、weak position that Arboria currently holds in the global marketplace
B、inability of Arborian leaders to recognize that foreign economic systems are based on principles fundamentally different from their own
C、dominance of the supporters of free trade in the conflict between free-trade and fair-trade advocates
D、apparent inability of Arborian industries to produce goods that are competitive in the world market
E、protectionism that characterizes the foreign trade policies of so many of Arboria's trade partners

答案:

B
1答疑

[Problem Solving]

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题目：

For any positive integer n, the length of n is defined as the number of prime factors whose product is n. For example, the length of 75 is 3, since 75 = 3 × 5 × 5. How many two-digit positive integers have length 6 ?

选项:

A、None
B、One
C、Two
D、Three
E、Four

答案:

C
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[Critical Reasoning]

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题目：

Advertisement: Our competitors’ computer salespeople are paid according to the value of the products they sell, so they have a financial incentive to convince you to buy the most expensive units—whether you need them or not. But here at Comput-o-Mart, our salespeople are paid a salary that is not dependent on the value of their sales, so they won’t try to tell you what to buy. That means when you buy a computer at Comput-o-Mart, you can be sure you’re not paying for computing capabilities you don’t need.

Which of the following would, if true, most weaken the advertisement’s reasoning?

选项:

A、Some less-expensive computers actually have greater computing power than more expensive ones.
B、Salespeople who have a financial incentive to make sales generally provide more attentive service than do other salespeople.
C、Extended warranties purchased for less-expensive computers can cost nearly as much as the purchase price of the computer.
D、Comput-o-Mart is open only limited hours, which makes it more difficult for many shoppers to buy computers there than at other retail stores.
E、Comput-o-Mart does not sell any computers that support only basic computing.

答案:

E
1答疑

[Reading Comprehension]

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文章：

Line Micro-wear patterns found on the teeth of long-
extinct specimens of the primate species
australopithecine may provide evidence about their
diets. For example, on the basis of tooth micro-wear
(5) patterns, Walker dismisses Jolly’s hypothesis that
australopithecines ate hard seeds. He also disputes
Szalay’s suggestion that the heavy enamel of
australopithecine teeth is an adaptation to bone
crunching, since both seed cracking and bone
(10) crunching produce distinctive micro-wear
characteristics on teeth. His conclusion that
australopithecines were frugivores (fruit eaters) is
based upon his observation that the tooth micro-
wear characteristics of east African
(15) australopithecine specimens are indistinguishable
from those of chimpanzees and orangutans, which
are commonly assumed to be frugivorous primates.
However, research on the diets of
contemporary primates suggests that micro-wear
(20) studies may have limited utility in determining the
foods that are actually eaten. For example, insect
eating, which can cause distinct micro-wear
patterns, would not cause much tooth abrasion in
modern baboons, who eat only soft-bodied insects
(25) rather than hard-bodied insects. In addition, the
diets of current omnivorous primates vary
considerably depending on the environments that
different groups within a primate species inhabit; if
australopithecines were omnivores too, we might
(30) expect to find considerable population variation in
their tooth micro-wear patterns. Thus, Walker’s
description of possible australopithecine diets may
need to be expanded to include a much more
diverse diet.

题目：

It can be inferred from the passage that Walker’s conclusion about the australopithecine diet would be called into question under which of the following circumstances?

选项:

A、
The tooth enamel of australopithecines is found to be much heavier than that of modern frugivorous primates.
B、
The micro-wear patterns of australopithecine teeth from regions other than east Africa are analyzed.
C、
Orangutans are found to have a much broader diet than is currently recognized.
D、
The environment of east Africa at the time australopithecines lived there is found to have been far more varied than is currently thought.
E、
The area in which the australopithecine specimens were found is discovered to have been very rich in soft-bodied insects during the period when australopithecines lived there.

答案:

C
1答疑

[Sentence Correction]

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题目：

As a pianist, composer, scholar, and essayist on a variety of learned subjects, among
the most gifted and versatile musicians of his time was Camille Saint-Saens(1835-1921)
who was, as many of his contemporaries were, deeply interested in Oriental themes.

选项:

A、As a pianist ,composer, scholar, and essayist on a variety of learned subjects.among the most gifted and versatile musicians of his time was Camille Saint-Saens (1835-1921),who was
B、As a pianist, composer, scholar, and essayist on a variety of earned subjects,Camille Saint-Saens (1835-1921) was among the most gifted and versatile musicians of his time and having been
C、pianist, composer, scholar, and essayist on a variety of learned subjects, among the most gifted and versatile musicians of his time was Camille Saint-Saens (1835-1921), and he was
D、Pianist, composer, scholar, and essayist on a variety of learned subjects, Camille Saint-Saens (1835-1921) was among the most gifted and versatile musicians of his time and was
E、pianist, composer, scholar, and essayist on a variety of learned subjects, Camille Saint-Saens (1835-1921) ,who was , among the Musicians of his time. one of the most gifted and versatile, had been

答案:

D
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[Problem Solving]

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题目：

If ½d - 9½ = 2d, then d =o-fareast

选项:

A、-9
B、-3
C、1
D、3
E、9

答案:

D
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[Critical Reasoning]

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题目：

In polluted environments, dolphins gradually accumulated toxins in their body fat, and the larger the dolphin the more accumulated toxin it can tolerate.  Nearly 80 percent of the toxins a female dolphin has accumulated pass into the fat-rich milk her nursing calf ingests.  Therefore, the unusually high mortality rate among dolphin calves in the industrially contaminated waters along Florida's Gulf Coast is probably the result of their being poisoned by their mother's milk.
 
Which of the following, if true, most strengthens the argument?

选项:

A、The survival rate of firstborn dolphin calves in the area along Florida's Gulf Coast is highest for those whose mothers were killed before they were weaned.
B、The rate at which adult dolphins living in the waters along Florida's Gulf Coast accumulate toxins is no higher than that of adult dolphins in comparably polluted waters elsewhere.
C、Among dolphin calves born in the area along Florida's Gulf Coast, the mortality rate is highest among those with living siblings.
D、As dolphins age, they accumulate toxins from the environment more slowly than when they were young.
E、Dolphins, like other marine mammals, have a higher proportion of body fat than do most land mammals.

答案:

A
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[Data Sufficiency]

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题目：

What is the remainder when the positive integer n is divided by the positive integer k, where k1?
(1)    
(2)    

选项:

答案:

A
1答疑

[Critical Reasoning]

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题目：

The number of applications for teaching positions in Newtown's public schools was 5.7 percent lower in 1993 than in 1985 and 5.9 percent lower in 1994 than in 1985.  Despite a steadily growing student population and an increasing number of teacher resignations, however, Newtown dose not face a teacher shortage in the late 1990's.
 
Which of the following, if true, would contribute most to an explanation of the apparent discrepancy above?

选项:

A、Many of Newtown's public school students do not graduate from high school.
B、New housing developments planned for Newtown are slated for occupancy in 1997 and are expected to increase the number of elementary school students in Newtown's public schools by 12 percent.
C、The Newtown school board does not contemplate increasing the ratio of students to teachers in the 1990's.
D、Teachers' colleges in and near Newtown produced fewer graduates in 1994 than in 1993.
E、In 1993 Newtown's public schools received 40 percent more applications for teaching positions than there were positions available.

答案:

E
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1932浏览

[Undefined]

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Art historian: Unlike many artistic traditions that sought to depict plants native to the local area in a seasonally appropriate way (for example, depicting scenes of spring with the plants in the appropriate stages of development for that season), seventeenth-century Dutch artists specializing in flower paintings almost exclusively chose to depict exotic species of flowers from outside the local area. Painting such species was worthwhile primarily because the art-buying public had developed a strong preference for images of the exotic. The great botanical centers of the time gave the artists direct access to such flowers, which the artists would freely combine in a single painting, regardless of whether the combined species occurred together in the wild, and depicted each in full bloom, regardless of whether those species bloomed at the same time in nature.

Statement: The art historian makes the point that the species of flowers these Dutch artists chose to paint were 1 largely because the species were 2 .

Select for 1 and for 2 the options that complete the statement so that it is most strongly supported by the information provided. Make only two selections, one in each column.
我选的CE，和EC有什么区别？怎么选出EC的？
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5020浏览

[Undefined]

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An unusually severe winter occurred in Europe after the continent was blanketed by a blue haze resulting from the eruption of the Laki Volcano in the European republic of Iceland in the summer of 1984.  Thus, it is evident that major eruptions cause the atmosphere to become cooler than it would be otherwise.
Which of the following statements, if true, most seriously weakens the argument above?
C选项为什么就不会有张冠李戴的问题呢，1984和1982的气候情况能一样吗，C里的火山就可以试用于原文的火山吗
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5706浏览

[Undefined]

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The rate of a certain chemical reaction is directly proportional to the square of the concentration of chemical A present and inversely proportional to the concentration of chemical B present. If the concentration of chemical B is increased by 100 percent, which of the following is closest to the percent change in the concentration of chemical A required to keep the reaction rate unchanged?
为什么这个题一定是相乘不能是相加呢？y=k1A方-k2B （k1,k2大于0 ），也满足题目说的与A方成正比与B成反比啊？但是这道题只有相乘的情况才能选出正确答案
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1911浏览

[Undefined]

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Tiger beetles are such fast runners that they can capture virtually any nonflying insect.  However, when running toward an insect, the beetles intermittently stop, and then, a moment later, resume their attack.  Perhaps they cannot maintain their pace and must pause for a moment's rest; but an alternative hypothesis is that while running tiger beetles are unable to process the resulting rapidly changing visual information, and so quickly go blind and stop.
 
Which of the following, if discovered in experiments using artificially moved prey insects, would support one of the two hypotheses and undermine the other?
答案C是怎么支持一个猜想又削弱另一个猜想的？
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4129浏览

[GWD]

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The author of the passage implies that which of the following is a possible partial explanation for acquisition behavior during the 1970's and 1980's?
请解释这道题为什么不选C或E，除了正确选项B，我认为文中也正确地提到了这两个选项可以解释acquisition behavior during 1970s and 80s
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2895浏览

[OG]

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The primary purpose of the passage is to
为什么选E不选B
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1914浏览

[Undefined]

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Club X has more than 10 but fewer than 40 members. Sometimes the members sit at tables with 3 members at one table and 4 members at each of the other tables, and sometimes they sit at tables with 3 members at one table and 5 members at each of the other tables. If they sit at tables with 6 members at each table except one and fewer than 6 members at that one table, how many members will be at the table that has fewer than 6 members?
提问小梅老师 这道题求讲一下 我没什么思路 带入数字得的是3
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2003浏览

[Undefined]

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A photography dealer ordered 60 Model X cameras to be sold for $250 each, which represents a 20 percent markup over the dealer's initial cost for each camera. Of the cameras ordered, 6 were never sold and were returned to the manufacturer for a refund of 50 percent of the dealer's initial cost. What was the dealer's approximate profit or loss as a percent of the dealer's initial cost for the 60 cameras?
请问小梅老师 这道题讲讲一下 我算的是19% 原来成本是200每个 亏了6个 每个亏100. 最后得不出答案
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426923浏览

[Undefined]

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Analytical!
请问may老师，这题该用什么思路来做？
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434061浏览

[Undefined]

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Analytical!
请问张老师，这道题为什么D不对？我有我觉得second paragraph最后一句话特别指向D
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