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有关心前区震颤不正确的是A．常见于二尖瓣狭窄震颤B．常见于二尖瓣关闭不全C．可分为收缩期震颤、舒

有关心前区震颤不正确的是

A．常见于二尖瓣狭窄震颤

B．常见于二尖瓣关闭不全

C．可分为收缩期震颤、舒张期震颤

D．以手掌触诊确定震颤的具体部位和时相

E．由血流经冲击瓣膜、心壁或血管壁产生振动而产生

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