[計量] 一題計量
第一次寫計量練習就遇到打擊 QQ
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Column A) how many different words can be formed using the alphabets I, I, H,
O, N and R?
Column B) Find the number of 4-letter words, with or without meanings that can
be formed using the letters of the word NUMBER. Any letter can not
appear more than once in a word.
答案是 C
但是不知道為什麼，請大家提點一下，
謝謝。
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10/20 21:14, , 1F
10/20 21:14, 1F
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10/20 21:18, , 2F
10/20 21:18, 2F
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10/20 21:19, , 3F
10/20 21:19, 3F
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10/20 21:22, , 4F
10/20 21:22, 4F
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10/20 21:22, , 5F
10/20 21:22, 5F
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