0一個五角錐有a個頂點、b個邊、c個面，則a＋b＋c＝？(A) 19 (B) 20 (C) 21 (D) 22。

問題詳情

01.一個五角錐有a個頂點、b個邊、c個面，則a＋b＋c＝？
(A) 19
(B) 20
(C) 21
(D) 22。

參考答案

答案：D
難度：計算中-1
書單：沒有書單，新增

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