单选题难度 5卫生高级职称儿内科下列何种情况可诊断为小细胞低色素性贫血( )AA.MCV94flMCH32pgMCHC35%BB.MCV80flMCH30pgMCHC35%CC.MCV80flMCH28pgMCHC32%DD.MCV80flMCH28pgMCHC32%EE.MCV80flMCH32pgMCHC38%