题干
— Would you like some__________?
— Oh, yes, just a little.
A：bread
B：potatoes
C：vegetables
答案(点此获取答案解析）
A
— Would you like some__________?
— Oh, yes, just a little.
A：bread
B：potatoes
C：vegetables
的左焦点F的直线
与双曲线的左支交于A、B两点，且以线段AB为直径的圆被双曲线C的左准线截得的劣弧的弧度数为
，那么双曲线的离心率为