GWD1-Q40 求解

wmh2i

GWD1-Q40:

Until mow, 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 from influenza, are commonly vaccinated.  A new influenza vaccine, administered painlessly in a nasal spray, is effective 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?

A. Any person who has received the injectable vaccine can safely receive the nasal-spray vaccine as well.

B. The new vaccine uses the same mechanism to ward off influenza as jnjectable vaccines 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 mot effective when administered to adults.

求教文中条件不是已经说明容易得complication的大人都打了疫苗了吗，那不就不担心小孩传染，那D选项是否主要由小孩传染不是就无所谓了？难道不对吗？？

wmh2i

cherryfish1209 发表于 2014-5-6 21:15
题目的结论是小孩很少有serious complications from influenza,所以给小孩打疫苗没有很明显的 public healt ...

THX!!!!!!!

cherryfish1209

题目的结论是小孩很少有serious complications from influenza,所以给小孩打疫苗没有很明显的 public health benefit ，问这个结论是基于什么假设，也就是说，选项应该加强这个结论，D说大人的感冒不是被小孩传染而来的，加强了这个结论，因为如果小孩会把感冒传染给大人，那么给小孩打疫苗就有明显的public health benefit了。
至于大人打了疫苗不会被传染。。。。有点钻牛角尖。。。因为题目只是说大人为了防止感冒才去打疫苗，并没有说打了疫苗就不会感冒。。。。

wmh2i

.....没人吗。。。。