___________ your brother have a dictionary?
A:Is
B:Are
C:Does
D:Do
点P是双曲线x2a2-y2b2=1a>0,b>0左支上的一点,其右焦点为Fc,0,若M为线段FP的中点, 且M到坐标原点的距离为c8,则双曲线的离心率e的取值范围是 ( )