0,3,3,6,9,5,()
A,7
B. 6
C. 4
D.8
0,2,1,4,3,8,(),12 A. 5 B. 6 C. 7 D. 9
6,7,3,0,3,3,6,9,5,() A.4;B.3;C.2;D.1;
:6,7,3,0,3,3,6,9,5,()A.4 B.3 C.2 D.1
6,7,3,0,3,3,6,9,()。A.5 B.6 C.7 D.8
6,7,3,0,3,3,6,9,5,()A.1B.2 C.3D.4