23. Which strategies would NOT help a virus to evade immune response activation?
(A) Having antigenic drift and antigenic shift
(B) Inhibiting antigen presentation via down-regulating MHC (major histocompatibility complex)
(C) Producing viral proteins that are very similar to those of other viruses
(D) Having viral latency period as part of the viral life cycle

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統計： A(1), B(4), C(10), D(3), E(0) #3425992