在胸骨左缘第三、四肋间触及收缩期震颤，应考虑为
A．主动脉瓣关闭不全
B．室间隔缺损
C．二尖瓣狭窄
D．三尖瓣狭窄
E．肺动脉瓣狭窄
参考答案：B
-- We’re organizing a party next Saturday, and I’d like you to come.
-- _______! I have another one that day. Thank you just the same.
A．Good luck!
B．What a pity!
C．Never do it again!
D．Well done!
何谓炒焦？
