缺铁性贫血根据病因分为()
A.丢失过多
B.供不应求
C.运转障碍
D.铁摄入不足
E.吸收不良
参考答案:A, B, C, D, E
The second runway of Hong Kong International Airport was officially ____ on May 26,1990.
A.put into effect
B.made use of
C.taken notice of
D.put into use
患者右下后牙拔除。术中因牙龈分离不全引起撕裂。术后压迫止血。术后 2h出现牙龈出血。处理方法是
A.再咬棉球压迫止血
B.口服止血药
C.局部敷止血药
D.局麻下搔刮牙槽窝
E.局麻下缝合撕裂牙龈