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(2003•烟台)如图,P是直径AB上一点,且PA=2cm,PB=6cm,CD为...
(2003•烟台)如图,P是直径AB上一点,且PA=2cm,PB=6cm,CD为过P点的弦,那么下列PC与PD的长度中,符合题意的是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232416290285382/SYS201310212324162902853016_ST/images0.png)
A.1cm,12cm
B.3cm,5cm
C.7cm,
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232416290285382/SYS201310212324162902853016_ST/0.png)
D.3cm,4cm
考点分析:
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