if p and q are different point in a plane,the set of all points in this plane that are closer to p than to q is
a)the region of the plane on one side of a line
b)the interior of a square
c)a wedge-shaped region of the plane
d)the region of the plane bounded by a parabola
e)the interior of a circle作者: DXDWSY 时间: 2012-10-31 06:44