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如图,已知⊙O是以数轴的原点O为圆心,半径为1的圆,∠AOB=45°,点P在数轴...
如图,已知⊙O是以数轴的原点O为圆心,半径为1的圆,∠AOB=45°,点P在数轴上运动,若过点P且与OA平行的直线与⊙O有公共点,设OP=x,则x的取值范围是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101193603169495728/SYS201311011936031694957006_ST/images0.png)
A.O<x≤
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101193603169495728/SYS201311011936031694957006_ST/0.png)
B.-
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101193603169495728/SYS201311011936031694957006_ST/1.png)
≤x≤
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101193603169495728/SYS201311011936031694957006_ST/2.png)
C.-1≤x≤1
D.x>
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101193603169495728/SYS201311011936031694957006_ST/3.png)
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