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标题: GWD18-Q15~求解~ [打印本页]

作者: HenriWilligS 时间: 2012-12-8 07:13 标题: GWD18-Q15~求解~

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?

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

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

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

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

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

答案是E。
我想请问各位NN，C为什么无法得出呢？

作者: buaagonggan 时间: 2012-12-9 06:58

这是道算术题.你划2个圈比较下. 就能得出来.
E是对的. 题干里面说了Asthma的人要比hay fever的人少.
C不对是因为题干里面没有提到total population.

作者: HenriWilligS 时间: 2012-12-9 21:00

Alright， I see your point！
Many thanks！

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