缺铁性贫血时增高的指标是（）。
A.血清铁
B.血清铁蛋白
C.总铁结合力
D.转铁蛋白饱和度
E.骨髓细胞内、外铁
参考答案：C
He had to take the medicine three times a day, so as to be ________ the pain in the leg.[ ]
A. far from
B. away from
C. apart from
D. free from
老化
