题目列表(包括答案和解析)
|
| 1 |
| 2 |
| 1 |
| 1×2 |
| 1 |
| 1 |
| 1 |
| 2 |
| 1 |
| 6 |
| 1 |
| 2×3 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 12 |
| 1 |
| 3×4 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 20 |
| 1 |
| 4×5 |
| 1 |
| 4 |
| 1 |
| 5 |
| 1 |
| 30 |
| 1 |
| 5×6 |
| 1 |
| 5 |
| 1 |
| 6 |
| 1 |
| (x-4)(x-3) |
| 1 |
| (x-3)(x-2) |
| 1 |
| (x-2)(x-1) |
| 1 |
| (x-1)x |
| 1 |
| x(x+1) |
| 1 |
| x+1 |
| 1 |
| 1×3 |
| 1 |
| 3×5 |
| 1 |
| 5×7 |
| 1 |
| 2009×2011 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 6 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 12 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 20 |
| 1 |
| 4 |
| 1 |
| 5 |
| 1 |
| 30 |
| 1 |
| 5 |
| 1 |
| 6 |
| 1 |
| 5 |
| 1 |
| 6 |
| 1 |
| 42 |
| 1 |
| 6 |
| 1 |
| 7 |
| 1 |
| 6 |
| 1 |
| 7 |
| 1 |
| n |
| 1 |
| n+1 |
| 1 |
| n |
| 1 |
| n+1 |
| 1 |
| x(x+1) |
| 1 |
| (x+1)(x+2) |
| 1 |
| (x+2)(x+3) |
| 1 |
| (x+2008)(x+2009) |
| 1 |
| 2 |
| 1 |
| 6 |
| 1 |
| 12 |
| 1 |
| 20 |
| 1 |
| 30 |
| 1 |
| 42 |
| 1 |
| 56 |
| 1 |
| 72 |
| 10 |
| 9 |
| 10 |
| 9 |
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