胃及十二指肠切除术致
A．铁摄入不足而需要增加B．铁分布不均C．铁转运障碍D．铁丢失过多E．铁吸收不良
参考答案：E
She first met Peter four years ago, and he______ at a computer store at that time. [ ]
A. has worked
B. had worked
C. was working
D. had been working
（）又称利率敏感性缺口管理法，是利率风险管理的重要工具。
A.利率管理
B.久期管理
C.缺口管理
D.资本管理
