题目如图,点AAA的坐标为(22(2\sqrt {2}(22,0)0)0),点BBB在直线y=−xy=-xy=−x上运动,当线段ABABAB最短时,点BBB的坐标为（ ）A.(0,0)\left(0,0\right)(0,0)B.(22(\dfrac{\sqrt {2}}{2}(22，−22)-\dfrac{\sqrt {2}}{2})−22)C.(1,1)\left(1,1\right)(1,1)D.(2(\sqrt {2}(2，−2)-\sqrt {2})−2)知识点：点到直线的距离章节：图形的性质 / 相交线与平行线
