维生素B12治疗小儿营养性巨幼细胞贫血无效,首先考虑可能的原因是()A、胃及回肠疾患B、胰腺疾患C、机体缺铁D、叶酸缺乏E、维生素C缺乏
维生素B12治疗小儿营养性巨幼细胞贫血无效,首先考虑可能的原因是()
- A、胃及回肠疾患
- B、胰腺疾患
- C、机体缺铁
- D、叶酸缺乏
- E、维生素C缺乏
相关考题:
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