1 |
3 |
A.
| B.-
| C.
| D.-
|
1 |
3 |
2 |
3 |
4 |
3 |
8 |
3 |
16 |
3 |
A.20 | B.24 | C.25 | D.30 |
A.12 | B.13 | C.14 | D.15 |
A.①②③ | B.②③④ | C.①③ | D.①②③④ |
A.n | B.n-3 | C.n-4 | D.n-5 |
A.数列1,3,5,7可表示为{1,3,5,7} | ||||
B.数列1,0,-1,-2与数列-2,-1,0,1是相同的数列 | ||||
C.数列{
| ||||
D.数列0,2,4,6,…可记为{2n} |
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