B.7.25
C.6.25
D.3.25
20.1,2,5,12,29,( ) A.82 B.70 C.48 D.62
21.1,4,9,22,53,( )。 A.89 B.82
C.128 D.75
22.1,4,4,7,10,16,( )。 A.22 B.24 C.25
D.10
23.2,3,7,22,155,( )
A.2901
B.3151
C.3281
D.3411
24. 3,7,16,107,( )
A.1707
B.1704
C.1086
D.1072
25.1,5,29,( ),3129
A.227
B.259
C.257
D.352
26.0, 2, 10, 30, ( A.68 B.74 C.60 D.70
27.1,64,243,256,125( ) )
A.36 B.81 C.0 D.1
28. 1,7,36,( )
A.74 B.86 C.98
D.125
29. 2, 3, 13, 175,( )
A.30625
B.30651
C.30759
D.30952
30.10560,9856,9152,8448,( )
A.7742
B.7644
C.6236 D.74
,2112
31.30,20,15,12,( ) A.10 B.8 C.11 D.6
32. 2,4,2,5, 3,7,4,15,( A.11 B.8 C.13
D.18
33.1,2,8,24,7,35,4,28,2,( A.6 B.22 C.30 D.40
34.12,6,18,12,30,( ),34 A.4 B.8
。 )。) C.10 D.12
35.6,7,3,0,3,3,6,9,5,( ) A.4 B.3 C.2 D.1
36.3,2,4,6,22,( )。
A.130 B.40
C.108
D.132
37.1,32,81,64,25,( ), 1 A.5 B.6 C.10 D.12
38.8,48,120,224,360,( )