心脏瓣膜病中出现第二心音逆分裂的疾病是()
A.二尖瓣狭窄
B.肺动脉瓣狭窄
C.主动脉瓣狭窄
D.二尖瓣关闭不全
E.主动脉瓣关闭不全
参考答案:C
He is the of person I really dislike. [ ]
A. sort
B. group
C. team
D. row
戴入局部义齿后与基牙疼痛无关的因素是
A.基托与基牙接触过紧
B.卡环上有高点
C.卡环过紧
D.基托伸展过长
E.义齿设计欠缺,基牙受力过大