关于房室交界性期前收缩，下列哪项正确A．临床较常见B．常发生在无器质性心脏病基础上C．偶尔能呈隐匿性传导D．其起源部位都在房室结本身E．一...

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问题关于房室交界性期前收缩，下列哪项正确

选项 A．临床较常见 B．常发生在无器质性心脏病基础上 C．偶尔能呈隐匿性传导 D．其起源部位都在房室结本身 E．一般下传心室大多可伴有传导阻滞

答案 C

解析

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