| 标题 | 解决时间 | 回答数 | 回答者 |
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| 2020-02-03 | 1 | ||
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| 老师还有其他方法吗? [几何图形的初步认识] | 2020-02-03 | 3 | |
| 如图,在三角形ABC中,<B=90°, [几何图形的初步认识] | 2020-02-03 | 5 | |
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