正常颈外动脉血流频谱是下列哪种形态A．低阻力频谱B．高阻力频谱C．收缩期双峰、舒张期三峰频谱D．三相血流频谱E．宽频双峰递减型频谱

作者: rantiku 人气: - 评论: 0

问题正常颈外动脉血流频谱是下列哪种形态

选项 A．低阻力频谱 B．高阻力频谱 C．收缩期双峰、舒张期三峰频谱 D．三相血流频谱 E．宽频双峰递减型频谱

答案 B

解析

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