2,10,27,51,88,()。
A.111
B.125
C.136
D.142
:1,4/3,13/9,40/27,()。A.121/81 B.67/81 C.121/51 D.67/51
1,4/3,13/9,40/27,()。A.121/81 B.67/81 C.121/51 D.67/51
2,10,19,31,52,()。A.111B.100C.85D.63
2,10,19,31,52,()。A.111B.100C.85 D.63
2,10,27,51,88, ()。A.111 B.125 C.136 D.142
2,10,19,31,52,。A.111B.100C.85D.63