75. In patients who have not been infected with SARS-CoV-2 or vaccination past,
what type of immunoglobulin can be detected first in the body after infection?
(A) IgG
(B) IgA
(C) IgM
(D) IgD
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統計: A(0), B(1), C(0), D(0), E(0) #3077692
統計: A(0), B(1), C(0), D(0), E(0) #3077692