我国成年巨幼细胞性贫血患者中多数( )A.以缺铁为主B.以缺乏叶酸为主C.以缺乏维生素B为主D.以红细胞被破坏为主E.以造血干细胞损伤为主

作者: rantiku 人气: - 评论: 0
问题 我国成年巨幼细胞性贫血患者中多数( )
选项 A.以缺铁为主 B.以缺乏叶酸为主 C.以缺乏维生素B为主 D.以红细胞被破坏为主 E.以造血干细胞损伤为主
答案 B
解析

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