:71,5,61,0,51,5,()。
A.46
B.41
C.10
D.40
:1,2,5,14,()。A.31 B.41 C.51 D.61
:1, 2, 5, 14, ()。A.31B.41C.51D.61
71,5,61,0,51,5,()。 A.46 B.41 C.10 D.40
1, 2, 5, 14, ()。A.31B.41C.51D.61
1,2,5,14,()。A.31B.41 C.51D.61