GMAT/留學申請專業顧問 Donz 之資訊交流園地

前一篇文章講完否定他因，現在就是敘述相反方向的題型，否定他果。

當作者因為某種原因，看到一項事件，或是推行一項計畫，最後推得一項結果，當然就是不允許其他結果的出現。

For example:

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Until now, only injectable vaccines against influenza have been available. Parents are reluctant to subject children to the pain of injections, but adults, who are at risk of serious
complications of influenza, are commonly vaccinated. A new influenza vaccine, administered painlessly in a nasal spary, is effect for children. However, since children seldom develop serious complications from influenza, no significant public health benefit
would result from widespread vaccination of children using the nasal spray.

Which of the following is an assumption on which the argument depends?

Ans: Adults do not contract influenza primarily from children who have influenza.

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題目是說，小孩害怕打針，比較能接受鼻子噴劑來治療流行性感冒。但因為小孩比較少產生流行性感冒嚴重的症狀，所以鼻噴劑對社會沒有實質的保健價值。

題目是拿小孩不會有感冒引起的嚴重症狀，來推小孩能接受的鼻噴劑沒什麼大眾利益。但實質上，如果小孩的感冒不治療，傳染給大人，

那就算小孩沒有嚴重症狀，但對 public 來說就是負面影響，會造成和原文相反的結果。所以答案選項必須排除這樣造成其他結果的可能性。