肝上下径间距离,是指在右锁骨中线上所叩的肝界,其正常范围应是多少()
A.7~9cm
B.8~10cm
C.9~11cm
D.10~12cm
E.11~13cm
参考答案:C
Ladies and gentlemen,please fasten your seat belts,the plane______.[ ]
A.takes off
B.is taking off
C.is going to take off
D.is to take off
患者男性,53岁,因阵发性心房颤动长期口服胺碘酮,并发生晕厥1次。心电图如图3-18-2所示,应诊断为()。
A.早期复极综合征
B.交界性逸搏心律
C.获得性长QT间期综合征
D.先天性长QT间期综合征
E.心肌缺血