发布时间:2025-01-25 08:27:48
其实关键是你的问题有问题。
梯形面积(上底加下底的和再乘高除2)乘厚度等于体积,这应该是没有问题的。
下底是18米,高是7米,厚度是6米,其他都有了,关键是你上底是多少?
新疆奎屯丰登园小区房子已经装修完一年了味道太大了我害怕甲醛超标各种办法都试了效果不是很好
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