判断题 把3千克苹果平均分成5份每份5分之1千克 把一根铁丝连续对折4次,每段时全长的4分之1
人气：453 ℃ 时间：2020-03-31 11:17:06
解答
1.错3|5千克 2.错（1|2）^4=1|16
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