单项选择题
A1型题
B.10%,20ml
C.15%,25ml
D.4%,30ml
E.10%,40ml
杨冰,2岁,拟需直接输血100ml,需准备枸橼酸钠生理盐水的浓度和量分别为()
A.4%,10mlB.10%,20ml
C.15%,25ml
D.4%,30ml
E.10%,40ml
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