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长为3的线段AB的端点A、B分别在x轴、y轴上移动,=2,则点C的轨迹是( ) ...
长为3的线段AB的端点A、B分别在x轴、y轴上移动,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025123721212967866/SYS201310251237212129678011_ST/0.png)
=2
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025123721212967866/SYS201310251237212129678011_ST/1.png)
,则点C的轨迹是( )
A.线段
B.圆
C.椭圆
D.双曲线
考点分析:
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