NN 们 帮我解释下 这个逻辑 有点晕了

typhoon_wang

1.GWD-18-Q15
Fact:Asthma, a bronchial支气管的 condition, is much less common ailment小病 than hay fever花粉热, an allergic inflammation炎症 of the nasal鼻子的 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先决条件 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   但是不止到为什么?   哭晕

cosuede

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

选e的原因是因为，上面的fact已经说了Asthma的base比hay fever要小了，这样，如果得了asthma的95%里的人又得了hay fever，那么，base变大，自然得了hay fever的人又得了asthma必然小于95%.

A、B、c根本推不出，D和上面的前提又矛盾

typhoon_wang

millions of thanks