63.下列何種病毒之伺機性感染可能引起AIDS病人的視網膜炎(retinitis)或肺炎?
(A)cytomegalovirus
(B)B19 virus
(C)RSV
(D)Epstein-Barr virus

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統計: A(949), B(68), C(75), D(62), E(0) #927369