题干
— Can you to keep the secret?
— Of course. I won't tell anyone else.
A：refuse
B：mind
C：promise
答案(点此获取答案解析）
C
— Can you to keep the secret?
— Of course. I won't tell anyone else.
A：refuse
B：mind
C：promise
的一条渐近线方程为
，则双曲线的离心率为（ ）