摘要: 设点P在轴上.它到P1(0..3)的距离为到点P2距离的两倍.则点P的坐标为( ) A B C D
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设点P在x轴上,它到P1(0,
,3)的距离为到点P2(0,1,-1)距离的两倍,则点P的坐标为( )
| 2 |
| A、(0,1,0)或(0,0,1) |
| B、(0,-1,0)或(0,0,-1) |
| C、(1,0,0)或(-1,0,0) |
| D、(0,-1,0)或(0,0,1) |