题干
---Are you going to Tom's birthday party?
---_____. I might have to work.
A：It depends
B：Thank you
C：Sound great
D：Don’t mention it
答案(点此获取答案解析）
A
---Are you going to Tom's birthday party?
---_____. I might have to work.
A：It depends
B：Thank you
C：Sound great
D：Don’t mention it
是等腰三角形，
，则以
为焦点且过点
的双曲线的离心率为（ ）
写作
写作
写作