題目列表(包括答案和解析)
| OA |
| a |
| OB |
| b |
| OC |
| c |
| a |
| b |
| c |
| 0 |
| a |
| b |
| b |
| c |
| c |
| a |
| a |
| b |
| c |
A、2
| ||
B、2
| ||
C、3
| ||
D、3
|
| OA |
| a |
| OB |
| b |
| OP |
| p |
| a |
| b |
| p |
| a |
| b) |
| OM |
| λOA |
| OB |
| OA |
| a |
| OB |
| b |
| OC |
| c |
| a |
| b |
| c |
| 0 |
| a |
| b |
| b |
| c |
| c |
| a |
| a |
| b |
| c |
A.2
B.2
C.3
D.3![]()
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