Is this your brother? What's ______ name? [ ]
A. his '
B. you
C. he
D. your
答案:A
二尖瓣球囊成形术的适应证,错误的是()
A.年龄40岁
B.重度二尖瓣狭窄,心功能3级
C.瓣叶钙化病变累及腱索和 * * 肌
D.合并轻度二尖瓣关闭不全
E.心房扩大
轴箱与导框的游间过大,容易使轴瓦发生偏磨。