一些逻辑问题的分析

jac95

楼主能加QQ不？这样问题方便点儿~

aomeisoft7

Many people suffer an allergic reaction to sulfites, including those that are commonly added to wine as preservatives.  However, since there are several winemakers producing wine to which no sulfites are added, those who would like to drink wine but are allergic to sulfites can drink these wines without risking an allergic reaction to sulfites.



Which of the following, if true, most seriously weakens the argument?



A. Sulfites occur naturally in most wine.



B. The sulfites that can produce an allergic reaction are also commonly found in beverages other than wine.



C. Wines without added sulfites tend to be at least moderately expensive.



D. Apart from sulfites, there are other substances commonly present in wine that can trigger allergic reactions.



E. Wine without added sulfites sometimes becomes undrinkable even before the wine is sold to consumers.

E是怎么错了？其实我不是来问题的，是太思念师姐了。。。

-- by 会员 Christianyang (2010/10/11 15:14:47)

你太搞笑叻~~ =_=lllll


E. Wine without added sulfites sometimes becomes undrinkable even before the wine is sold to consumers.
E  没有加入sulfites的酒有时在卖给消费者之前就不能喝了......（先不论和结论有没有关，看到some直接就排除掉...样本没代表性）


题目结论是
those who would like to drink wine but are allergic to sulfites can drink these wines without risking an allergic reaction to sulfites.

这些人喝了没用加入sulfites的酒 不会产生对 sulfites的过敏
（即使E是对的，酒不能喝了，这和他们喝不喝酒，过不过敏也没关系。。。他们吃了坏酒过敏了，一样支持结论）

aomeisoft7

楼主能加QQ不？这样问题方便点儿~

-- by 会员 jac95 (2010/10/11 15:35:31)

33701777

caviar2004s

請教NN,一題在gmatclub遇到的cr

In the modern era, society should accept the premise that equality before the law is not appropriate to the marketplace, where modern methods of marketing, packaging, and financing have reduced the ordinary consumer to a subordinate position. To protect the consumer from the hardship and oppression that could result from this inferior position, the law should limit the freedom of action of the enterprises with which the consumer deals.
Which of the following, if true, would most weaken the argument above?
a) When a consumer buys a product in a cardboard box or can, there is no way to know what there isinside.
b) The concept of equality is contradicted by the reality that the consumer is not equal in power to the supplier.
c) The health and well-being of consumers are protected by a variety of statutes that have been in effect for decades.
d) Equality before the law is an essential part of the American way of life and should not be restricted.
e) Society should recognize the right of consumers not to be subjected to unfair and deceptive advertising practices.

樓主真是好人
答案是d 真是百思不解@@,求思路及詳解,謝謝!
題來源:http://gmatclub.com/forum/freedom-in-the-market-place-99439.html

jac95

忘了附上QQ号~516467447~楼主救命的~

aomeisoft7

請教NN,一題在gmatclub遇到的cr

In the modern era, society should accept the premise that equality before the law is not appropriate to the marketplace, where modern methods of marketing, packaging, and financing have reduced the ordinary consumer to a subordinate position. To protect the consumer from the hardship and oppression that could result from this inferior position, the law should limit the freedom of action of the enterprises with which the consumer deals.
Which of the following, if true, would most weaken the argument above?
a) When a consumer buys a product in a cardboard box or can, there is no way to know what there isinside.
b) The concept of equality is contradicted by the reality that the consumer is not equal in power to the supplier.
c) The health and well-being of consumers are protected by a variety of statutes that have been in effect for decades.
d) Equality before the law is an essential part of the American way of life and should not be restricted.
e) Society should recognize the right of consumers not to be subjected to unfair and deceptive advertising practices.

樓主真是好人
答案是d 真是百思不解@@,求思路及詳解,謝謝!
題來源:http://gmatclub.com/forum/freedom-in-the-market-place-99439.html

-- by 会员 caviar2004s (2010/10/11 16:04:21)

现在社会应该承认一个现实：在市场上没有平等，因为企业家销售融资手段使消费者处于次等地位。为了保护消费者不受压迫，法律要限制企业家的自由。
求削弱
a) When a consumer buys a product in a cardboard box or can, there is no way to know what there isinside.
消费者不知道盒子里的是什么东西=.=  无关
b) The concept of equality is contradicted by the reality that the consumer is not equal in power to the supplier.
平等的概念和事实矛盾... （不应该反对题干背景吧）
c) The health and well-being of consumers are protected by a variety of statutes that have been in effect for decades. 无关
d) Equality before the law is an essential part of the American way of life and should not be restricted.
平等很重要，不应该被限制（结论要限制企业家自由。然而限制企业家的自由也是一种不平等吧。。这个选项的should not be restricted应该和结论的should limit the freedom对应..所以就削弱了结论）
e) Society should recognize the right of consumers not to be subjected to unfair and deceptive advertising practices.
支持

Christianyang

师姐，抽空来我们学校看看我啊~~~

aomeisoft7

师姐，抽空来我们学校看看我啊~~~

-- by 会员 Christianyang (2010/10/11 19:56:24)

明天考的好一定去看你...

alicejingli

78. A recent report determined that although only 3
percent of drivers on Maryland highways equipped
their vehicles with radar detectors, 33 percent of all
vehicles ticketed for exceeding the speed limit were
equipped with them. Clearly, drivers who equip their
vehicles with radar detectors are more likely to exceed
the speed limit regularly than are drivers who do not.
The conclusion drawn above depends on which of the
following assumptions?
(A) Drivers who equip their vehicles with radar
detectors are less likely to be ticketed for
exceeding the speed limit than are drivers who
do not.
(B) Drivers who are ticketed for exceeding the
speed limit are more likely to exceed the speed
limit regularly than are drivers who are not
ticketed.
(C) The number of vehicles that were ticketed for
exceeding the speed limit was greater than the
number of vehicles that were equipped with
radar detectors.
(D) Many of the vehicles that were ticketed for
exceeding the speed limit were ticketed more
than once in the time period covered by the
report.
(E) Drivers on Maryland highways exceeded the
speed limit more often than did drivers on other
state highways not covered in the report.

我想问这道题，文章不是说的是DRIVERS WHO EQUIPPED THEIR VEHICLES WITH RADAR DETECTOR吗？那怎会选B，这里有个无关信息，驾驶员被罚款，没有说到带着RADAR DETECTOR的驾驶员怎样呀？

-- by 会员 alicejingli (2010/10/10 22:18:21)

这题的结论是：Clearly, drivers who equip their vehicles with radar detectors are more likely to exceed the speed limit regularly than are drivers who do not.
B说的driver是总体，带雷达不带雷达的车都算在内了，怎么无关了呢？？....


条件1 3%的车装了radar
条件2 超速被开罚单的车中33%装了radar
结论  装radar的人比不装radar的人更likely to exceed the speed limit regularly

反问：如果那些没被抓的人更加容易超速呢？而这些人正好是没装雷达的？那结论就应该是没装雷达的人更容易经常超速 - 这正好和结论相反。

所以前提是：被抓的人比不被抓的人更加容易超速

-- by 会员 aomeisoft7 (2010/10/10 22:26:07)

想问，怎样就变成了反问？什-意思？怎样就推出反问这个结论了？

alicejingli

为啥要反问？您是按照怎样的思路进行反问？是说所有的假设题都要进行反问？