65岁以上单纯主动脉瓣狭窄的常见病因是A.风湿性瓣膜病 B.单纯主动脉瓣狭窄 C.二 发布时间:2017-06-10 23:32 │ 来源:www.tikuol.com 题型:单项选择题 问题: 65岁以上单纯主动脉瓣狭窄的常见病因是A.风湿性瓣膜病B.单纯主动脉瓣狭窄C.二叶式主动脉瓣钙化D.退行性钙化性主动脉瓣狭窄E.冠状动脉粥样硬化性心脏病
题型:单项选择题 –What kind of TV program do you like best? --()A.It’s hard to say, actuallyB.I only watch them at weekendC.I’m too busy to say 查看答案