—       ?      —Quite well, thank you.

A．How much is your computer

B．How can I help you

C．What do you do

D．How are you getting on with your study

患者女性，20岁。经常感到头晕无力，脸色较苍白。血常规检查提示小细胞低色素性贫血，Hb 70g/L，初诊为缺铁性贫血，可测定血清蛋白指标以明确诊断是

A．AAT
B．AAG
C．TRF
D．Hp
E．AMG