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 vaccine against influenza if the vaccination did not require an injection.
这题一开始还错选了D，其实人家D只把重心放在了older adults，很迷惑啊很迷惑。。。后来好好想了想才找到正确答案E。建议可以跟刚才楼上的考古一起对照看一看，呵呵~英语作文
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