| 1. Dr. Hegsted argues that just as polio vaccine is given to every person to protect the few who might actually contract polio, mass dietary change is needed to protect the significant number who are susceptible to the life-threatening effects of press eating habits. (A) just as polio vaccine is given to every person to protect the few who might actually contract polio (B) like polio vaccine, which is given to every person to protect the few who might contract polio (C) similar to polio vaccine which is given to every person in order to protect the few who might actually contract polio (D) while, to protect the few who might actually contract polio, polio vaccine is given to every person（A）
(E) similar to the giving of polio vaccine to every person in order to protect the few who might contract polio actually
答案是A,但我觉得D没错啊,D对比的是protect the few 和 pretect the significant number,while表示对比,请NN指点,多谢啦 | 
