[生物] 普生
1.Which antibody makes up about 80% of the antibodies in the blood?
(A)IgA (B)IgD (C)IgE (D)IgG (E)IgM
2.To help prevent rejection of a transplanted organ,what is analyzed?
(A)MHC makers
(B)plasma antibodies
(C)lysozyme concentration
(D)killer T cell levels
(E)B cell levels
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05/18 09:07, , 1F
05/18 09:07, 1F