在墙角有一堆沙,呈 1 4 圆锥形(如图所示),沙堆顶点在两墙面交界线上,沙堆底面是半径为2?
答middle" cellpadding="-1" cellspacing="-1">
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= 2 ×0.6× ×3:inline-table:1px solid black"> 1 4 | , =0;vertical-align:1px solid black"> 1 3 | ×3:middle" cellpadding="-1" cellspacing="-1"> |
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1 |
4 |
.628(立方米);vertical-align;
答:middle" cellpadding="-1" cellspacing="-1">
初见521125
82024-05-16
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