治疗巨幼红细胞贫血，儿童口服叶酸每日剂量为A.0.4mg B.15?30mg C.5?15mg D.1mg E.1?7mg

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问题治疗巨幼红细胞贫血，儿童口服叶酸每日剂量为

选项 A.0.4mg
B.15?30mg
C.5?15mg
D.1mg
E.1?7mg

答案C

解析

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