题目列表(包括答案和解析)
| a |
| b |
| a |
| b |
| ||
| 3 |
| ||
| 3 |
| ||
| 3 |
| ||
| 3 |
| ||
| 3 |
| ||
| 3 |
| ||
| 3 |
| ||
| 3 |
| ||
| 3 |
| ||
| 3 |
| ||
| 3 |
| ||
| 3 |
| a |
| b |
| a |
| b |
| w |
| v |
| 5 |
| w |
| 5 |
| 5 |
| v |
| w |
| v |
| w |
| v |
| w |
| w |
| u |
| v |
| w |
| u |
| a2+b2 |
| v |
| w |
| AB |
| A、(1,2) |
| B、(-1,-2) |
| C、(-3,4) |
| D、(3,-4) |
| a |
| b |
| c |
| c |
| a |
| b |
| c |
| c |
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