阿摩線上測驗
27. Which of the following is an example of passive immunity?
(A) Vaccination with live attenuated virus
(B) Transfer of maternal antibodies to the fetus
(C) Natural infection
(D) Immunization with inactivated toxin
(E) Activation of T cells
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統計： A(1), B(1), C(0), D(0), E(1) #3422993
統計： A(1), B(1), C(0), D(0), E(1) #3422993
