单项选择题
A.2~15fl B.2~30fl C.6~30fl D.10~50fl E.15~90fl
A.12~100fl B.35~160fl C.50~125fl D.36~260fl E.36~360fl
A.巨幼细胞性贫血 B.慢性感染 C.缺铁性贫血 D.急性溶血性贫血 E.再生障碍性贫血
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