問題詳情
20.摩斯碼 ( · ─ · · ) 係表示字母:
(A)F
(B)L
(C)S
(D)Z
(A)F
(B)L
(C)S
(D)Z
參考答案
答案:B
難度:計算中-1
書單:沒有書單,新增
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