9. 輪機日誌中，「燃油閥冷卻水」的英文為下列何者？
(A)L.O. Valve Cooling Water
(B)F.O. Valve Cooling Water
(C)L.O. Valve Heating Water
(D)F.O. Valve Heating Water

答案是 (B) F.O. Valve C...