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祈晴坊主

我打算9号后再模考
这几天就反复做题
好多没作完

不过照你这样说的
我也发觉
好象题目是做不完的

昨天小安GG跟我说了
好孩子不一定要做完每道题目的

呵呵
我看着办了

而且感觉老闷在家里看书其实状态不是很好

至少效率狂不高的

哎
反正做到哪里算哪里了

还有
我在试着写作文了

你写了没

祈晴坊主

20. Despite the approach of winter, oil prices to indus-
trial customers are exceptionally low this year and
likely to remain so. Therefore, unless the winter is
especially severe, the price of natural gas to indus-
trial customers is also likely to remain low.

Which of the following, if true, provides the most
support for the conclusion above?
(A) Long-term weather forecasts predict a mild winter.
(B) The industrial users who consume most natural
gas can quickly and cheaply switch to using
oil instead.
(C) The largest sources of supply for both oil and
natural gas are in subtropical regions unlikely
to be affected by winter weather.
(D) The fuel requirements of industrial users of nat-
ural gas are not seriously affected by the
weather.
(E) Oil distribution is more likely to be affected by
severe winter weather than is the distribution
of natural gas.


答案选B
我不是很理解
题目中并没有就OIL 和GAS进行比较啊

而且他的最后结论说
unless the winter is
especially severe, the price of natural gas to indus-
trial customers is also likely to remain low
那么隐含意思就是说，如果冬天很冷的话
那么， gas的价格也是会上涨的

那么，和B中的描述有什么关系

祈晴坊主

9. In 1990 all of the people who applied for a job at
Evco also applied for a job at Radeco, and Evco
and Radeco each offered jobs to half of these appli-
cants. Therefore, every one of these applicants must
have been offered a job in 1990.

The argument above is based on which of the
following assumptions about these job applicants?
(A) All of the applicants were very well qualified for
a job at either Evco or Radeco.
(B) All of the applicants accepted a job at either
Evco or Radeco.
(C) None of the applicants was offered a job by
both Evco and Radeco.
(D) None of the applicants had applied for jobs at
places other than Evco and Radeco.
(E) None of the applicants had perviously worked
for either Evco or Radeco.

这题选C
可是我选A

如果A的前提不满足，既不是所有的人都有资格的话
那么结论every one of these applicants must
have been offered a job in 1990.
不是推不出来了吗

enhance

21. The energy an animal must expend to move uphill is proportional to its body weight, whereas the animal's energy output available to perform this task is proportional to its surface area. This is the reason that small animals, like squirrel, can run up a tree trunk almost as fast as they can move on level ground, whereas large animals tend to slow down when they are moving uphill

Which one of the following is an assumption on which the explanation above depends?
(A) The amount of energy needed to move uphill is no greater for large animals that it is for small animals.
(C) The ratio of surface area to body weight is smaller in large animals than it is in small animals.

(A) 不对, 因为Large Animals 应该需要更多的能量 to move uphill.
(C) 抓住了问题的关键, Large Animals 接触面积和身体重量的比例小, 所以速度慢.

[此贴子已经被作者于2003-10-7 4:44:35编辑过]

enhance

9. In 1990 all of the people who applied for a job at
Evco also applied for a job at Radeco, and Evco
and Radeco each offered jobs to half of these appli-
cants. Therefore, every one of these applicants must
have been offered a job in 1990.

The argument above is based on which of the
following assumptions about these job applicants?
(A) All of the applicants were very well qualified for
a job at either Evco or Radeco.

(C) None of the applicants was offered a job by
both Evco and Radeco.

这道题目的问题是寻找加上以后就必然可以推出结论的选项.
可以用集合考虑, (C)选项避免了重复, 必然保证每个申请人都有一个Offer.
所以是最优答案.

而(A)选项加上以后, 并不能必然推出结论.

[此贴子已经被作者于2003-10-7 4:45:22编辑过]

enhance

20. Despite the approach of winter, oil prices to indus-
trial customers are exceptionally low this year and
likely to remain so. Therefore, unless the winter is
especially severe, the price of natural gas to indus-
trial customers is also likely to remain low.

Which of the following, if true, provides the most
support for the conclusion above?

(B) The industrial users who consume most natural
gas can quickly and cheaply switch to using
oil instead.


答案选B
我不是很理解
题目中并没有就OIL 和GAS进行比较啊

而且他的最后结论说
unless the winter is
especially severe, the price of natural gas to indus-
trial customers is also likely to remain low
那么隐含意思就是说，如果冬天很冷的话
那么， gas的价格也是会上涨的

那么，和B中的描述有什么关系

因果题, 结果是"工业用户的天然气价格会保持低水平"

找原因: 如果工业用户如果可以便宜地迅速转换使用石油,
天然气公司就会采用保持低价格的策略, 防止天然气的工业用户
去使用石油. 这就是(B)中隐含的答案.
因为天气不能决定价格, 供求关系才是决定价格的重要因素.

[此贴子已经被作者于2003-10-7 4:48:21编辑过]

祈晴坊主

清楚了

非常谢谢enhance GG