王女士,62岁,考虑患者出现了心力衰竭,下列检查不能反映心功能状态的是( )
A.X线检查B.超声心动图C.放射性核素检查D.胸部CTE.有创性血流动力学检查
参考答案:D
Tom has much difficulty _______ Chinese so he often asks me ______ help
A.to understand; with
B.understanding; of
C.to understand; for
D.understanding; for
一度房室传导阻滞()三度房室传导阻滞()二度Ⅰ型房室传导阻滞()二度Ⅱ型房室传导阻滞()室性期前收缩()
A.提前出现的QRS波群,宽大畸形
B.P波与QRS波群无关
C.PR间期逐渐延长,继之QRS波群脱落,呈周期性
D.PR间期固定,有时QRS波群脱落
E.PR间期延长