采用低频滤波装置时，保留的超声信号来自?(?)A．心壁B．腱索C．瓣膜D．血管壁E．血流

作者: rantiku 人气: - 评论: 0

问题采用低频滤波装置时，保留的超声信号来自?(?)

选项 A．心壁 B．腱索 C．瓣膜 D．血管壁 E．血流

答案 E

解析

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