题目内容
中度二尖瓣狭窄
2022-03-18
A.瓣孔直径> 1. 9cm
B.瓣孔直径1.3 ~ 1.8cm
C.瓣孔直径0.8-1. 2cm
D.瓣孔直径 <0.7cm
E.瓣孔直径0.7 ~ 1.8cm
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