A.21/34
B.21/65
C.17/53
D.1
[单选题]1/3, 1, 1, 13/17, 17/33,( )A.21/34 B.21/65 C.17/53 D.1
[单选题]1 1 3 7 17 41 ( )A.89 B.99 C.109 D.119
[主观题]1,1,3,7,17,41,()A.89;B.99;C.109;D.119;
[试题]1,1,3,7,17,41,()A.89;B.99;C.109;D.119;
[主观题]1,1,3,7,17,41,()A.89;B.99;C.109;D.119;
[单选题]:1,1,3,7,17,41,( )。A.89 B.99 C.109 D.119
[单选题]1,1,3,7,17,41,()A .89B .99C .109D .119
[单选题]1£«3£«5£«7£«…£«17=()。A.81B.100C.153D.162
[单选题]13, 17, 21, 25, ( ), 33。A.27B.29C.31D.32
[单选题]3,1,8,8,17,( )。A.19B.20C.21D.22