問題詳情
12.摩斯碼（ · · · · · ）係表示那一個數字？
(A)0
(B)4
(C)5
(D)8
(A)0
(B)4
(C)5
(D)8
參考答案
答案：C
難度：計算中-1
書單：沒有書單，新增
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