> 数学 >
1.4,5,15,6,7,35,8,9,( )
A.27 B.15 C.72 D.63
2.1526,4769,2154,5397
A.2317 B.1545 C.1469 D.5213
人气:421 ℃ 时间:2020-05-16 14:04:43
解答
1.4,5,15,6,7,35,8,9,( D )A.27 B.15 C.72 D.63规律:每三个数一组(4-1)×5=15(6-1)×7=35所以8,9后面的数是:(8-1)×9=63、选( D )2.1526,4769,2154,5397,( C )A.2317 B.1545 C.1469 D.5213 已知的...
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