一Are Bob and Lily in the reading room now?
— .Let's go and have a look.
A:I'm not sure
B:That's OK
C:I see
D:Sounds good
已知椭圆x2a2+y2b2=1a>b>0的离心率e=12,右焦点为Fc,0,方程ax2+bx-c=0的两个实根x1,x2,则点Px1,x2( )