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找规律12,7,4.5,3.25,( ),( )
(1)12,7,4.5,3.25,( ),( )
(2)2.4,4.6.9,17.8,( ),( )
(3)35,10,5,4,( ),( )
人气:141 ℃ 时间:2020-05-22 23:07:58
解答
12,7,4.5,3.25,2.625,2.3125(规律:前面数加2再除2)
2.4,4.6,9,17.8,35.4,70.6(规律:前面数乘2再件0.2)
35,10,5,4,3.8,3.76( 差值以5的次方递减)
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