对天花有预防作用的是_精华吧

对天花有预防作用的是

精华吧→答案→知到智慧树→未分类

对天花有预防作用的是

A.人痘苗

B.牛痘苗

C.抗毒素

D.类毒素

E.卡介苗

正确答案：人痘苗；牛痘苗

Tag：医学免疫学牛痘苗痘苗时间：2023-12-26 21:04:16

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