A.5
B.6
C.10
D.12
A.
B.
C.
D.
1,8,9,4,( ),1/6
A.3
B.2
C.1
D.1/3
1,32,81,64,25,( )
A.6
B.8
C.9
D.16
3,8,15,( ),35
A.24
B.22
C.20
D.18
1.答案: B
解析: 1,32,81,64,25,( ),1,为幂次数列,把原数列变为幂次数形式为:1^6,2^5,3^4,4^3,5^2,( ),7^0,因此选项为6^1=6,因此,本题答案选择B选项。
2.答案: A
解析:
3.答案: C
4.答案: A
5.答案: A