单项选择题

B1型题 缺铁性贫血()

A.MCV正常、MCH正常、MCHC正常
B.MCV增高、MCH增高、MCHC正常
C.MCV增高、MCH正常、MCHC正常
D.MCV减低、MCH正常、MCHC正常
E.MCV减低、MCH减低、MCHC减低