发布时间:2025-01-31 04:40:13
半径为12.56÷3.14÷2=2m
体积为π×2^2×2=8π 立方米
可以盛稻谷8π×600=4800π≈15079.64千克
怎样给这张纸做一个相框意思就是到时候这张白纸里画一幅画然后在外面做一个框手工制作
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