一个数除以5，所得余数可以是1,2,3,4,5,6
已知动圆过定点F（2，0），且与直线x=﹣2相切，求动圆圆心C的轨迹．
The girl's information(信息)
First name: _____________
Last name ___________
School: No.6 Middle School
Class: _______, Grade: 7
Phone number: 82506372
School ID card number: ___________
Favorite color: ____________
____ .
