发布时间:2025-01-24 11:38:51
木材小头直径10公分,也就是0.1米,那么木材体积就是0.1²÷4×3.14×6.3=0.04955立方米。
下面是怡心花园小区的平面图1用数对表示下面场所的位置大门____________超市_________
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