绘制梯形图时应将V行中的竖线对准()。
A.P波
B.PR间期
C.QRS波群起点
D.T波
E.QRS波群的R峰
参考答案:C
Would you please give him this message the moment he ______? [ ]
A. arrives
B. arrived
C. will arrive
D. is being arrived
膀胱病变最基本的检查方法是()
A.B超
B.膀胱逆行造影
C.膀胱镜检查
D.静脉尿路造影
E.CT