» Title: 進階教學(5)—-排成四位數—(詳解已公佈)» Posted: 4月 23rd, 2013» Author: 我是大富翁» Filed Under: 數學.
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在 0, 1, 1, 1, 2, 2, 2, 3, 3, 4, 5, 6 這12個數字之中,選 4個數字出來,
可以排成_________個四位數。
詳解請看【插頁】\【進階教學】
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