Prep 107

genecarter

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.搜过以前的讨论，但是还有想不通。我感觉D可以加强啊，正确答案是E。

我觉得D是这样想的。
题目先说注射疫苗针对大人，又说鼻喷雾剂可以防止流感子啊小孩中的传播。结论是，用鼻喷雾剂可以防止流感在整个population里的传播。
那我就想到这样的gap：题干只是说鼻喷雾剂可以帮到制止流感在小孩间传播，而结论却推及这个population。试想如果大人的流感多由小孩传染，那么鼻喷雾剂再怎么在小孩中在怎么厉害，也没有用啊，大人还是在得流感啊。所以把这种可能排除了（也就是选项D）不就可以推出结论了么，不久加强了么。所以我迷惑啊。

而E吧，我觉得也没人在比较大人是更愿意让小孩注射呢还是不让小孩注射。题干只是说了鼻喷雾剂，又没说另一种要注射的小孩用的疫苗，大人偏向哪种注射方法也没半毛钱关系啊。

感觉自己陷入逻辑怪圈~~~不能自拔~~

搜过以前的讨论，但是还有想不通。我感觉D可以加强啊，正确答案是E。

我觉得D是这样想的。
题目先说注射疫苗针对大人，又说鼻喷雾剂可以防止流感子啊小孩中的传播。结论是，用鼻喷雾剂可以防止流感在整个population里的传播。
那我就想到这样的gap：题干只是说鼻喷雾剂可以帮到制止流感在小孩间传播，而结论却推及这个population。试想如果大人的流感多由小孩传染，那么鼻喷雾剂再怎么在小孩中在怎么厉害，也没有用啊，大人还是在得流感啊。所以把这种可能排除了（也就是选项D）不就可以推出结论了么，不久加强了么。所以我迷惑啊。

而E吧，我觉得也没人在比较大人是更愿意让小孩注射呢还是不让小孩注射。题干只是说了鼻喷雾剂，又没说另一种要注射的小孩用的疫苗，大人偏向哪种注射方法也没半毛钱关系啊。

感觉自己陷入逻辑怪圈~~~不能自拔~~

sdcar2010

我觉得D是这样想的。
题目先说注射疫苗针对大人，又说鼻喷雾剂可以防止流感子啊小孩中的传播。结论是，用鼻喷雾剂可以防止流感在整个population里的传播。
那我就想到这样的gap：题干只是说鼻喷雾剂可以帮到制止流感在小孩间传播，而结论却推及这个population。试想如果大人的流感多由小孩传染，那么鼻喷雾剂再怎么在小孩中在怎么厉害，也没有用啊，大人还是在得流感啊。所以把这种可能排除了（也就是选项D）不就可以推出结论了么，不久加强了么。所以我迷惑啊。

Think again. D is weakening the conclusion, not strenthening it. D) actually refutes the conclusion (in red).