11. COVID-19 causes a global pandemic and millions of deaths. Vaccination is efficient for preventing virus infection, because which type of antibody will be secreted after this preventive medical treatment?
(A) IgA
(B) IgD
(C) IgE
(D) IgG
(E) IgM
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統計: A(0), B(0), C(0), D(0), E(1) #3506981
統計: A(0), B(0), C(0), D(0), E(1) #3506981