单项选择题
A.20~25kcal/(kg·D. B.30~35kcal/(kg·D. C.40~45kcal/(kg·D. D.50kcal/(kg·D. E.55kcal/(kg·D.
A.0.4%~0.6% B.1.5% C.1% D.1.7% E.0.2%
A.红细胞计数 B.平均红细胞体积 C.血清铁 D.总铁结合力 E.血清铁蛋白