找规律:1,4,9,a,25,36,49,.则a=().A.16 B.13 C.14 D.20
问题描述:
找规律:1,4,9,a,25,36,49,.则a=().A.16 B.13 C.14 D.20
答
1,4,9,a,25,36,49,.则a=(16).
找规律:1,4,9,a,25,36,49,.则a=().A.16 B.13 C.14 D.20
1,4,9,a,25,36,49,.则a=(16).