a | 2n |
a | 2n-1 |
1 |
a1+a2 |
1 |
a2+a3 |
1 |
an+an+1 |
A.64 | B.63 | C.32 | D.31 |
a | 22 |
a | 21 |
a | 23 |
a | 22 |
a | 24 |
a | 23 |
a | 25 |
a | 24 |
a | 25 |
a | 21 |
1+p |
1+4p |
1+4p |
1+2(n-1) |
2n-1 |
1 |
an+an+1 |
1 | ||||
|
1 |
2 |
2n+1 |
2n-1 |
1 |
a1+a2 |
1 |
a2+a3 |
1 |
an+an+1 |
1 |
2 |
2n+1 |
A.①⑤⑥ | B.①③⑥ | C.①③⑤ | D.①②④ |
1+a |
1-a |
1 |
3 |
© 2017-2019 超级试练试题库,All Rights Reserved.