Can you show me _____ to start the computer? [ ]
A. What
B. where
C. how
D. which
答案:C
—I like soft music.
— . Especially pop music. [ ]
A. So do I
B. So am I
C. So I do
D. So I am
诊断第二度Ⅱ型窦房传导阻滞的是()
A.P-P间期逐渐缩短直到P波受阻,QnS波群脱落
B.P波消失,代之以间距,振幅不等的畸形波,频率360次/分,QRS波正常,律绝对不规则
C.P-P间期显著延长,长间歇与正常P-P无倍数关系
D.P-P间期显著延长,长间歇与正常P-P成倍数关系
E.QRS波正常,频率190次/分,其前有固定关系P波,P-P间期为0.16秒