1,2,2,3,4,6,()。
A.7 B.8 C.9 D.10
:1,2,2,3,4,6,()。A.7 B.8 C.9 D.10
1 2 3 4 () 9 8 12 18 27 A.6 B.7 C.10 D.11
1 2 3 4 () 9 8 12 18 27A.6 B.7 C.10 D.11
1,10,2,______,3,8,4,7,5,6 A.6 B.7 C.8 D.9
1,2,2,3,4,6,() A.7 B.8 C.9 D.10
1 2 2 3 4 6 ( )。A.7 B.8 C.9 D.10