题目列表(包括答案和解析)
| a |
| b |
| a |
| b |
| a |
| b |
| a |
| b |
| a |
| b |
| b |
| a |
| a |
| b |
| a |
| b |
| a |
| b |
| a |
| b |
| a |
| b |
| a |
| b |
| a |
| b |
| A、(1)(2)(3) |
| B、(2)(3)(4) |
| C、(1)(3)(4) |
| D、(1)(2)(4) |
| a |
| b |
| a |
| b |
| a |
| b |
| a |
| b |
| a |
| b |
| b |
| a |
| a |
| b |
| a |
| b |
| a |
| b |
| a |
| b |
| a |
| b |
| a |
| b |
| a |
| b |
| A.(1)(2)(3) | B.(2)(3)(4) | C.(1)(3)(4) | D.(1)(2)(4) |
| 1 |
| x |
| 1 |
| x |
| f(x)2-2x |
| 2 |
| s2 |
| 2 |
| s3 |
| 3 |
| sn |
| n |
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