12.Pernicious anemia 最主要是指缺乏下列何者?
(A)Intrinsic factor
(B)Cobalamin
(C)Folate
(D)Iron
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統計: A(1289), B(132), C(217), D(34), E(0) #3197950
統計: A(1289), B(132), C(217), D(34), E(0) #3197950