以下是关于【切线的性质定理】的公开课/优质课视频，一共43个
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12:0285 -
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44:10122 -
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40:109 -
48:3532 -
36:127 -
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44:5125 -
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49:39118 -
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40:28109 -
42:2393 -
44:305 -
44:379 -
39:3154 -
39:07105 -
42:2825 -
49:32128 -
41:5321