6. If you are aware that somebody had written wording“FWROB” in the log book, it means _________. (A)Food waste return on bottle(B)Foggy weather running over bay (C)Fresh water remained on board (D)Floating wheel rotate on boat

7. 關於摩斯燈號通訊，下列敘述何者為非？ (A)「‧─‧─‧─ (點、劃、點、劃、點、劃)」：小數點符號，使用在有小數點的位置 (B)「─‧─ ─ ─ ─‧‧(劃、點、劃、劃、劃、劃、點、點)」下列字句爲明語 (C)「‧─‧‧‧(點、劃、點、點、點)」表示發信台發信號結束 (D)「‧─‧‧─ ─‧─ (點、劃、點、點、劃、劃、點、劃)」請重複(收信台發)，我將重複(發信台發)