67.下列何者可用來製造Smallpox vaccine?
(A)Cowpox virus
(B)Vaccinia virus
(C)Variola virus
(D)Pseudocowpox virus
答案:登入後查看
統計: A(417), B(1122), C(211), D(32), E(0) #2972741
統計: A(417), B(1122), C(211), D(32), E(0) #2972741