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Until now, only injectable vaccines against influenza have been available. They have been used primarily by older adults, who are at risk for complications from influenza. A new vaccine administered in a nasal spray has proven effective in preventing influenza in children. Since children are significantly more likely than adults to contract and spread influenza, making the new vaccine widely available for children will greatly reduce the spread of influenza across the population.

Which of the following, if true, most strengthens the argument?

正确答案: E

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发表于 2015-3-2 22:24:08 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
Until now, only injectable vaccines against influenza have been available. They have been used primarily by older adults, who are at risk for complications from influenza. A new vaccine administered in a nasal spray has proven effective in preventing influenza in children. Since children are significantly more likely than adults to contract and spread influenza, making the new vaccine widely available for children will greatly reduce the spread of influenza across the population.

Which of the following, if true, most strengthens the argument?
A If a person receives both the injectable and the nasal-spray vaccine, the two vaccines do not interfere with each other.  
B The new vaccine uses the same mechanism to ward off influenza as injectable vaccines do.  
C Government subsidies have kept the injectable vaccine affordable for all older adults.
D Of the older adults who contract influenza, relatively few contract it from children with influenza.  
E Many parents would be more inclined to have their children vaccinated against influenza if the vaccination did not require an injection.  


本题选E,我理解E是正确的。但是C选项貌似也说的过去,因为我对C的理解是:孩子们能够得到疫苗,如果老人们得不到疫苗,整体上的传染率还是很高。所以要在老人们一直有疫苗的情况下,让孩子们新注射疫苗,才能够减少疾病传播。

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