6,13,22,35,54,81,()。
A.115
B.117
C.118
D.116
17,18,22,31,47,() A.54 B.63C.72 D.81
0,7/3,22/5,45/7,76/9,()A.12 B.13 C. 106/11 D. 115/11
1,1,5,3,9,9,13,27,(),()。A.17,81B.16,54 C.15,36D.14,42
2,7,13,22,36,57,()。A.58 B.87 C.93 D.115
6,13,22,35,54,81,()。A.115 B.117 C.118 D.116
17,18,22,31,47,()。A.54B.63C.72D.81