(A)信函 -> 書面(☆)★★★-&☆☆;★★...
https://www.goo☆☆☆.☆☆☆/...
會議是面對面溝通、非書面溝通
29. 下列何者不屬書面溝通? (A)信函 (B)備忘錄 (C)書面報告 (D..-阿摩線上測驗