1.3,-1,8,9,73,( )a.119 b.154 c.192 d.2112.19/13,1,13/19,10/22,( )a.7/24 b.7/25 c.5/26 d.7/26
问题描述:
1.3,-1,8,9,73,( )a.119 b.154 c.192 d.2112.19/13,1,13/19,10/22,( )a.7/24 b.7/25 c.5/26 d.7/26
答
2.19/13,1,13/19,10/22,( ) a.7/24 b.7/25 c.5/26 d.7/26选B.把1写成16/16,则分子分母这两个序列都是3的等差序列."