| a |
| b |
| a |
| b |
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| b |
| a |
| b |
| a |
| b |
| OA |
| OB |
| OC |
| a |
| b |
| a |
| b |
| a |
| b |
| b |
| a |
| A、4个 | B、3个 | C、2个 | D、1个 |
| a |
| b |
| a |
| b |
| a |
| b |
| OA |
| a |
| OB |
| b |
| OA |
| OB |
| BA |
| a |
| b |
| a |
| b |
| OA |
| OB |
| OC |
| OB |
| OC |
| OD |
| CO |
| OD |
| a |
| b |
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| a |
| b |
| a |
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| a |
| b |
| b |
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| a |
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| OB |
| BA |
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| a |
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| OB |
| OC |
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| 0 |
| CO |
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科目:高中数学 来源: 题型:
| A、(-2,2) |
| B、(-2,0 )∪(0,2) |
| C、(-∞,-2 )∪(2,+∞) |
| D、(-2,0 )∪(2,+∞) |
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