| 标题 | 解决时间 | 回答数 | 回答者 |
|---|---|---|---|
| 2019-07-19 | 1 | ||
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| 同步卫星的速度是多少 [牛顿定律] | 2019-07-19 | 1 | |
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| 讲一下为什么B选项不能求解 [牛顿定律] | 2019-07-19 | 1 |

