皮皮学，免费搜题
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搜题
【单选题】
一位巨幼细胞贫血患儿肌内注射维生素B12(规格0.5mg/ml) ,按一次剂量为25-50μg给药,应抽取的药液体积是( )A.
0.025ml-0.05ml
B.
0.20ml-0.40ml
C.
0.10ml-0.20ml
D.
0.15ml-0.30ml
E.
0.05ml-0.10ml
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