[单选题]

男,30岁。乏力、食欲减退1年。Hb90g/L,MCV110fl,MCH36pg,MCHC330g/L。最可能的病因是

A.急性失血性贫血

B.缺铁性贫血

C.尿毒症

D.再生障碍性贪血

E.巨幼细胞贫血

参考答案与解析:

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