二尖瓣狭窄的超声特征是:A.EF斜率加快,前后瓣同向运动B.EF斜率减慢,前后瓣异向运动C.EF斜率减慢,前后瓣同向运动D.二尖瓣DE振幅增高...

作者: rantiku 人气: - 评论: 0
问题 二尖瓣狭窄的超声特征是:
选项 A.EF斜率加快,前后瓣同向运动 B.EF斜率减慢,前后瓣异向运动 C.EF斜率减慢,前后瓣同向运动 D.二尖瓣DE振幅增高,EF斜率加快 E.无特异征象
答案 C
解析

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