10. Which of the following is NOT part of the body's innate defense system?
(A) Natural killer cells
(B) Antibodies
(C) Interferons
(D) Complement system
(E) Inflammation
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統計: A(0), B(1), C(0), D(0), E(0) #3387200
統計: A(0), B(1), C(0), D(0), E(0) #3387200