题目内容
主动脉瓣关闭不全时,多普勒超声表现不 包括
2022-01-25
A.二尖瓣前叶舒张期震颤
B.舒张期左室流出道五彩镶嵌血流束
C.通过彩色反流束的范围诊断程度
D.主动脉瓣下舒张期高速揣流频谱
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