求助GWD 1 40～～～～～卡住了～～～望高手相助

fannybeibei

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?

1. Any person who has received the injectable vaccine can safely receive the nasal-spray vaccine as well.
   
2. The new vaccine uses the same mechanism to ward off influenza as jnjectable vaccines do.
   
3. The injectable vaccine is affordable for all adults.
   
4. Adults do not contract influenza primarily from children who have influenza.
   
5. The nasal spray vaccine is mot effective when administered to adults.
   

E为什么不可以啊
小孩不用种，对大人又没用，那么所以不会benefit public health

或者取非，虽然小孩不种，但对种了大人有用，会benefit public health

edwardelric

on which the argument depends
问你以什么为根据啊？楼主是不没看清题
5effective to adult  那就benefit public health 了

fannybeibei

E The nasal spray vaccine is not effective when administered to adults.
不是mot，我上面题目打错了
不好意思
所以还请再指点
答案说是D
我怎么看E都行

edwardelric

no significant public health benefit would result from widespread vaccination of         children            using the nasal spray.
看空格，跟child有关的前提~e是成人

fannybeibei

非常感谢
不过我对D 还有点意见,(因为主语也是adult)
我尝试说下，还望指点对不对
DAdults do not contract influenza primarily from children who have influenza.

取非，就说，大人若会从小孩感染，那么小孩不用那个药，就不利于public health
其实，小孩是要打那个新药的

herosweet

E if you delete the "not" you will see the spray is effective for the adult. So the original point is right.

edwardelric

不对~d有adult跟e的是两把事情~
楼主没明白d真正对的原因
孩子中不中都无所谓，孩子得病了长大不得，成人怕得病，长大是没得过病，长大要中疫苗，但你小时得过了长大就不用了扎了~

edwardelric

孩子时期是没得过病，长大要中疫苗，但你小时得过了长大就不用了扎了~
刚才打错了~