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标题: 两个逻辑题不明白！ [打印本页]

作者: yzhao2xiaotong 时间: 2015-5-27 23:26
标题: 两个逻辑题不明白！

The program to control the entry of illegal drugs into    the country was a failure in 1987. If the program had been successful, the    wholesale price of most illegal drugs would not have dropped substantially    in 1987.

   The argument in the passage depends on which of the following    assumptions?

   (A) The supply of illegal drugs dropped substantially in 1987.
   (B) The price paid for most illegal drugs by the average consumer did    not drop substantially in 1987.
   (C) Domestic production of illegal drugs increased at a higher rate    than did the entry of such drugs into the country.
   (D) The wholesale price of a few illegal drugs increased    substantially in 1987.
   (E)    A drop in demand for most illegal drugs in 1987 was not the sole cause of    the drop in their wholesale price.
A researcher discovered that people who have low    levels of immune-system activity tend to score much lower on tests of    mental health than do people with normal or high immune-system activity.    The researcher concluded from this experiment that the immune system    protects against mental illness as well as against physical disease.

   The researcher’s conclusion depends on which of the following    assumptions?

   A. High immune-system activity protects against mental illness better    than normal immune-system activity does.
   B. Mental illness is similar to physical disease in its effects on    body systems.
   C. People with high immune-system activity cannot develop mental    illness.
   D.    Mental illness does not cause people’s immune-system activity to decrease.
   E. Psychological treatment of mental illness is not as effective as    is medical treatment.

作者: benjaminsandro 时间: 2015-5-28 14:28
1. control the entry失败，推论应该是entry成功扩大，而题目的推论是批发价格降低。
缺失的是entry（体现为“量”）和wholesale price之间的关系。
2. 试验表明A的某状态伴随B的某状态出现，结论是是A影响了B。
所以前提假设就是：不是B影响了A

作者: yzhao2xiaotong 时间: 2015-5-29 09:58

benjaminsandro 发表于 2015-5-28 14:28
1. control the entry失败，推论应该是entry成功扩大，而题目的推论是批发价格降低。
缺失的是entry（体现 ...

Thank you!!!明白点了

作者: elusive 时间: 2016-9-12 14:28
因为：药品价格降低了
所以：控制药品数量是失败的
如果成功了，价格是不会降低的，说明了控制数量是对药品价格有影响的
E说了需求不是导致价格变化的唯一原因。如果需求是唯一原因，那么就否定了控制数量对价格的影响，也就使上面的因果不成立，因为这个因果是建立在控制数量对价格有影响的基础上的。

B不对因为只提及了一部分消费者

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