标题: 求助GWD-TN-1 40 [打印本页] 作者: fairytale17 时间: 2012-3-14 20:02 标题: 求助GWD-TN-1 40 Until mow,only injectable vaccines against influenza have been available.  arents are reluctant to subject children tothe pain of injections, but adults, who are at risk of serious complicationsfrom influenza, are commonly vaccinated. A new influenza vaccine, administered painlessly in a nasal spray, is effectivefor children. However, since childrenseldom develop serious complications from influenza, no significant publichealth benefit would result from widespread vaccination of childrenusing the nasal spray. Which ofthe following is an assumption on which the argument depends? A. Any person who has received the injectablevaccine can safely receive the nasal-spray vaccine as well. B. The new vaccine uses the same mechanism toward off influenza as jnjectable vaccines do. C. The injectable vaccine is affordable for alladults. D. Adults do not contract influenza primarilyfrom children who have influenza. E. The nasal spray vaccine is mot effectivewhen administered to adults. 看不太懂。。。求解释,求翻译,多谢作者: nomailman 时间: 2012-3-15 23:57
目前市面上只有一种流感疫苗,它是注射剂,因为打针怪疼的,所以家长不想让小娃娃打这种疫苗。目前又有一种新的疫苗开发出来的,是喷雾剂,不疼的。作者认为小娃娃也没有必要喷这种新的疫苗,因为小娃娃一般不容易得流感,只有大人才容易得流感。问assumption