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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?

  1. Hay fever is a prerequisite for the development of asthma

  2. Asthma is a prerequisite for the development of hay fever

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

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

  5. 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.

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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

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agree!!![em01]

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