Science
Junior High
Resolved
理化B4 第5題
6
人
2
在 六(人5 取6個質量與大小完全相同
的正立方體金屬塊,分別以
國國評宙抽E攻如生
示。 。 其中底層上表面斜線範圍內所受的【
應為下列
Pi
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