題目列表(包括答案和解析)
1-
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(
|
A、
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B、-
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C、
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D、-
|
| 1 |
| 4 |
| 1 |
| 2 |
(
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(0.1-2)(a3b-3)
|
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 2n |
| n(n+1) |
| 2 |
| 1 |
| 2n |
| n(n+1) |
| 2 |
| 1 |
| 2n |
| (2n-1)•3n+1 |
| 4 |
| (2n-1)•3n+1 |
| 4 |
| 1 |
| 3 |
| 1 |
| 9 |
| 1 |
| 27 |
| 1 |
| 3n |
| 3 |
| 4 |
| 1 |
| 4 |
| 1 |
| 3 |
| n |
| 2 |
| 1 |
| 3 |
| 3 |
| 4 |
| 1 |
| 4 |
| 1 |
| 3 |
| n |
| 2 |
| 1 |
| 3 |
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