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⊙O的直径是10,点O到直线a的距离是3,则直线a被⊙O所截得的弦长为A.8B.
⊙O的直径是10,点O到直线a的距离是3,则直线a被⊙O所截得的弦长为A.8B.
发布时间:2020-07-26 14:55:17
⊙O的直径是10,点O到直线a的距离是3,则直线a被⊙O所截得的弦长为A.8B.12C.14D.16
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