米,厘米,厘米,米
Which one of the following has a different stress from the others? [ ]
A. capital
B. medicine
C. result
D. empty
二尖瓣关闭不全可见于()
A.风湿性心脏病
B.感染性心内膜炎
C.先天性心脏病
D.退行性心脏病
E.以上都是