过点P(2，3)且在两坐标轴有相等截距的直线方程是    （   ）                         A  x + y－5 =" 0                 " B  x + y + 5 =" 0  "

C  x + y－5 =" 0" 或x + y + 5 =" 0   " D  x + y－5 =" 0" 或3x－2y = 0