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1.2X2.5X8.8X2.5的简便计算
人气:449 ℃ 时间:2020-09-29 15:02:47
解答
1.2X2.5X8.8X2.5
=0.3x4x2.5x2.2x4x2.5
=0.3x10x2.2x10
=3x22
=66
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