16,27,16,( ),1
A.5;B.6;C.7;D.8
2,3,4,1,6,-1,()A.5 B.6 C.7 D.8
2,3,4,1,6,-1,() A.5 B.6 C.7 D.8
16,27,16,(),1A.5 B.6 C.7 D.8
16,27,16,(),1A.5 B.6 C.7 D.8
2,4,3,(),13/4,27/8,53/16。A.1 B.7/2 C.7/3 D.4