4,2,2,3,6,()
A.16
B.15
C.8
D.4
4,2,2,3,6,() A、6;B、8;C、10;D、15
:15,3,1,3/8,3/25,()。A.0 B.2 C.3/16 D.3/4
15,3,1,3/8,3/25,()。A.0 B.2 C.3/16 D.3/4
4,3,2,0,-3,-8,()A.-15 B.-16 C.-17 D.-18
1,3,2,4,2,7,4,11,(),()。A.6,19 B.8,18 C.10,20 D.16,22
1,2,4,3,8,6,16,10,() A.15 B.16 C.24 D.32