单项选择题
A、3/35 B、-3/35 C、-3/56 D、3/56
1/2,1/9,1/28,()A.1/65B.1/32C.1/56D.1/48
单项选择题1/2,1/9,1/28,()
A.1/65 B.1/32 C.1/56 D.1/48
3,10,29,66,()A.37B.95C.100D.127
单项选择题3,10,29,66,()
A.37 B.95 C.100 D.127
102,1030204,10305020406,()A.1030507020406B.103050204060...
单项选择题102,1030204,10305020406,()
A.1030507020406 B.1030502040608 C.10305072040608 D.103050702040608