数资习题(40 题)
数量关系(25 题)
16. -1,1,7,25,79,( )
A.121
B.241
C.243
D.254
17. 7,11,17,26,( )
A.39
B.40
C.41
D.42
18. 5,7,9,11,13,( )
A.15
B.16
C.17
D.18
19. 下面数列表现出一定的规律性,0.002,0.04,0.3,4,( ),你认为填入最合适的数字是?( )
A.60
B.5
C.50
D.500
20. 2,4,7,11,16,( )
A.19
B.22
C.26
D.28