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(2002•浙江)如图,⊙O的两条割线PAB,PCD分别交⊙O于点A,B和点C,...
(2002•浙江)如图,⊙O的两条割线PAB,PCD分别交⊙O于点A,B和点C,D.已知PA=6,AB=4,PC=5,则CD=( )
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A.
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B.
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C.7
D.24
考点分析:
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