1.1,2,9,121,( )A.251B.441C.16900D.960
2.公务员数量关系题:1,2,9,121,( )1,2,9,121,( )A.251 B.441 C.16900 D.960
3.单选题1,2,9,121,( )。A 251B 441C 16900D 960
4.1,2,9,121,( )。