器质性二尖瓣狭窄不出现于
A.第一心音亢进B.Austin-Flint杂音C.舒张期隆隆样杂音D.S2分裂E.开瓣音
参考答案:B
. ---- I’ll be able to come to see your performance at : tomorrow evening.
---I’m sorry, by then my performance____ and I___ reporters in the meeting room.
A.will be ended; will meet
B.is to end; will meet
C.will have ended; will be meeting
D.will be ended; am going to meet