| a |
| b |
| a |
| c |
| b |
| c |
| a |
| b |
| a |
| b |
| a |
| b |
| OA |
| OB |
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| 0 |
| a |
| b |
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| a |
| b |
| c |
| a |
| b |
| a• |
| b |
| a |
| b |
| b |
| a |
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| a |
| a |
| b |
| a |
| c |
| b |
| c |
| a |
| b |
| a |
| b |
| a |
| b |
| a |
| b |
| a |
| b |
| OA |
| OB |
| OC |
| 0 |
| OA |
| OB |
| OC |
| OA |
| OB |
| OC |
| OA |
| OC |
| OC |
| OB |
| CA |
| BC |
| a |
| b |
| c |
| c |
| c |
| a |
| b |
| c |
| a |
| a |
| a |
| b |
| c |
| a |
| b |
| c |
| a |
| b |
| a• |
| b |
| a |
| b |
科目:高中數(shù)學 來源: 題型:
| a |
| b |
| a |
| c |
| b |
| c |
| a |
| b |
| a |
| b |
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| b |
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| b |
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| a• |
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| a |
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查看答案和解析>>
科目:高中數(shù)學 來源:陜西省寶雞中學2012屆高三第四次月考數(shù)學理科試題 題型:013
以下有關(guān)平面向量的結(jié)論:①
;②
;③![]()
;④
;⑤
,其中正確的結(jié)論有
1個
2個
3個
4個
查看答案和解析>>
科目:高中數(shù)學 來源: 題型:單選題
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