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x轴上任一点到定点(0,2)、(1,1)距离之和最小值是( ) A. B.2 C...
x轴上任一点到定点(0,2)、(1,1)距离之和最小值是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025123721212975621/SYS201310251237212129756005_ST/0.png)
B.2
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025123721212975621/SYS201310251237212129756005_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025123721212975621/SYS201310251237212129756005_ST/2.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025123721212975621/SYS201310251237212129756005_ST/3.png)
考点分析:
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若圆x
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