体育场用37.5立方米的煤渣铺在一条长500米,宽7.5米的直跑道上,煤渣可以铺多厚?
人气:132 ℃ 时间:2019-10-17 03:24:09
解答
37·5÷(500X7·5)37.5/3750?!额不对吧为什么不对呢?已知体积面积求高=0·01米=1厘米饿~_~我眼瞎哦
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