2,5,9,16,49,()
A.64
B.100
C.1089
D.2053
请帮忙给出正确答案和分析,谢谢!
100 3/4,______,64 16/12,49 64/36,36 256/108 () A.81 4/5 B.81 5/9 C.82D.81
16,23,9,30,2,() A.37B.41C.45D.49
16,23,9,30,2,() A.37 B.41 C.45 D.49
16,23,9,30,2,()A.37B.41 C.5D.49
16,23,9,30,2,()A.37B.41 C.45D.49
16,23,9,30,2,()。A.37B.41C.45D.49