A.27
B.30
C.33
D.35
[单选题]2 , 10 , 5 , 25 , 9 , 45 , 3 , ( )A. . 17B. . 20C. . 2D. . 15
[单选题]1 ,3, 5, 9, 17, 31, 57,______ ( )A.105B. 89C.95D.135
[单选题]1,3,5,9,17,31,( )。A.78B.65C.57D.46
[单选题]:2,5,9,14,17,(),26。A.19 B.21 C.23 D.25
[单选题]:4,1,3,12,9,3,17,5,( )A.12B.13C.14D.15
[单选题]4,1,3,12,9,3,17,5,( )。A.12B.13C.14D.15
[单选题]1,3,5,9,17,31,57,( )A.105B.89C.95D.135
[单选题]1,3,5,9,17,31,57,( )。A.105B.89C.95D.135
[单选题]1,3,5,9,17,31,57,( )。A.105B.89C.95D.135
[单选题]1,3,5,9,17,31,57,( )。A.105B.89C.95D.135