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数学
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1.观察蜗牛的过程就是探究的过程:(六个空)
2.观察下面的一列数,按照某种规律在横线上填上适当的数.
-2,-4,0,-2.,2(四个空)
人气:103 ℃ 时间:2020-05-22 21:00:14
解答
第2题:前一项加后一项的和分别为-6,-4,-2,0.后一项比前一项大2,按照这个规律,答案应为0,4,2,6
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