31. What is passive immunity dependent upon?
(A) a person's own immune system producing antibodies
(B) antibodies made by another organism
(C) antibody-producing cells from another organism
(D) antigens from a person's own body
(E) antigen stimulates antibody production
詳解 (共 1 筆)
未解鎖
直接接受另一個體的抗體而獲得免疫力。僅能...
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