Untilnow, only injectable vaccines against influenza have been available. Parents are reluctant to subject children tothe pain of injections, but adults, who are at risk of serious complicationsfrom influenza, are commonly vaccinated. A new influenza vaccine, administered painlessly in a nasal spray, iseffective for children. However, sincechildren seldom develop serious complications from influenza, no significantpublic health benefit would result from widespread vaccination of childrenusing the nasal spray. Whichof the following is an assumption on which the argument depends? A.Any person who has received the injectable vaccine can safely receive thenasal-spray vaccine as well. B.The new vaccine uses the same mechanism to ward off influenza as injectablevaccines do. C.The injectable vaccine is affordable for all adults. D.Adults do not contract influenza primarily from children who have influenza. E.The nasal spray vaccine is not effective when administered to adults.
题目中说adults are at risk of serious complications from fluenza, however, children seldom develop serious complication from fluenza, so public ...... [size=13.3333px]以偏概全:children = public [size=13.3333px]用数学集合的概念来看:前提在说子集的事情,但是推导出的结论确实全集的事情。 [size=13.3333px]Asp:全集=子集 [size=13.3333px]改错:children + adults = public
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