一条直线l经过点P（1，2），且与两点A（2，3），B（4，-5）的距离相等，则直线l的方程是[ ]

A.4x+y-6=0或3x+2y-7=0

B.4x+y-6=0

C.x+4y-6=0或2x+3y-7=0

D.x+4y-6=0

—             your sister have a computer?

—Sorry, I don’t think she has               .

A．Does; one

B．Do; it

C．Do; one

D．Does; it