A. . 17
B. . 20
C. . 2
D. . 15
[单选题]:2,3,5,9,17,( )。A.27B.30C.33D.35
[单选题]69÷3×2-45÷9×5=()A . 26B . 25C . 3D . 21
[单选题]9,3,10,4,17,11,( )A.23B.57C.97D.122
[单选题]9,3,10,4,17,11,( )。A.23B.57C.97D.122
[单选题]9,3,10,4,17,11,( )。A.23B.57C.97D.122
[单选题]9,3,10,4,17,11,( )。A.23B.57C.97D.122
[主观题]计算。4/3-(2/5+3/10)5/7+1/4-9/143/4+3/6-5/8
[单选题]17,10,9,6,1,2,( )。A.0B.1C.2D.3
[单选题]17,10,9,6,1,2,( )。A.0B.1C.2D.3
[单选题]1 ,3, 5, 9, 17, 31, 57,______ ( )A.105B. 89C.95D.135