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标题: GWD9-13 [打印本页]

作者: vacationer    时间: 2005-9-5 10:31
标题: GWD9-13

GWD-9-Q13:


Fact: Asthma, a bronchial condition, is much less common ailment than hay fever, an allergic inflammation of the nasal passages.



Fact: over 95 percent of people who have asthma also suffer from hay fever.



If the information given as facts above is true, which of the following must also be true?




  • Hay fever is a prerequisite for the development of asthma

  • Asthma is a prerequisite for the development of hay fever

  • Those who have neither hay fever nor asthma comprise less than 5 percent of the total population

  • The number of people who have both of these ailments is greater than the number of people who have only one of them

  • The percentage of people suffering from hay fever who also have asthma is lower than 95 percent.


  • 这题答案是什么? 没有找到相关的帖子,我下载的XY版无重复题上也没有这道的答案


    作者: 寂寞的声音    时间: 2005-9-5 11:27

    我选E


    A的得病数远远小于H,并且A种95%都会同时感染H,那么取反就是E了


    作者: vacationer    时间: 2005-9-6 12:11
    以下是引用寂寞的声音在2005-9-5 11:27:00的发言:

    我选E


    A的得病数远远小于H,并且A种95%都会同时感染H,那么取反就是E了


    取反就是E了?怎么推出来的啊?


    作者: PKGMAT    时间: 2005-9-24 12:04
    because: "Asthma is much less common ailment than hay fever", 也就是HF的数量会比A多,分母大,比例就小。
    作者: amber0919    时间: 2006-5-1 16:12

    作者: amber0919    时间: 2006-5-1 16:15

    但也推不出小于95%吧?


    作者: 加拿大帅哥    时间: 2007-1-31 10:41

    PKGMAT,

    言之有理!   

    if AS persons are 100, HF persons are 200

    96% AS (including HF suffering)=96 persons    96 /200 HF < 96% 


    作者: cakemouse    时间: 2007-8-19 15:57

    我觉得这个题目不严谨。什么叫much less common?!比如得A的人100个,其中96个FEVER。另外,总共FEVER的人101个,结果是96/101。那么这个小于95%就不成立。所以,OVER 95%到什么程度,MUCH LESS COMMON 到什么程度都将决定结果的。






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