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17.1等腰三角形 2024-05-13 03:49:54
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17.1等腰三角形-解题课 2024-05-13 03:49:54
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17.3勾股定理 2024-05-13 03:49:54
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17.3勾股定理-解题课 2024-05-13 03:49:54
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17.4直角三角形全等的判定 2024-05-13 03:49:54
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利用勾股定理构造-解题课 2024-05-13 03:49:54
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构造等边三角形 2024-05-13 03:49:54
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特殊角的应用-解题课 2024-05-13 03:49:54
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用勾股定理求高与中线-解题课 2024-05-13 03:49:54
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