:1 , 3, 4, 1, 9, ()
A .5 B .11 C .14 D .64
42 . 1 , 3, 4, 1, 9, ()A .5 B .11 C .14 D .64
5,3,4,1,9,()。 A.24 B.11 C.37 D.64
1,3/4,9/5,7/16,25/9,() A.15/38 B.11/36 C.14/27 D.18/29
1,3/4,9/5,7/16,25/9,()A.15/38B.11/36C.14/27D.18/29
3,4,1,9,()A.5 B.11 C.14 D.64
1 , 3, 4, 1, 9, () A .5 B .11 C .14 D .64