問題詳情
49. The clonal selection theory implies that
(A) related people have similar immune responses.
(B) antigens activate specific lymphocytes.
(C)only certain cells can produce interferon.
(D) memory cells are present at birth.
(E) the body selects which antigens it will respond to.
(A) related people have similar immune responses.
(B) antigens activate specific lymphocytes.
(C)only certain cells can produce interferon.
(D) memory cells are present at birth.
(E) the body selects which antigens it will respond to.
參考答案
無參考答案
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