期前收缩的产生机制包括A．附加的房室传导束B．迷走神经张力增高C．折返激动D．触发活动E．异位起搏点的兴奋性增高

作者: rantiku 人气: - 评论: 0

问题期前收缩的产生机制包括

选项 A．附加的房室传导束 B．迷走神经张力增高 C．折返激动 D．触发活动 E．异位起搏点的兴奋性增高

答案 CDE

解析

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