单项选择题
A.at the end of the watch B.at any time C.ONLY when properly relieved D.15 minutes before the end of the watch
A look-out at the bow sights an object on your port sid...
单项选择题A look-out at the bow sights an object on your port side. How many bell strokes should he sound? （）
A.One B.Two C.Three D.Four
A helmsman receives the command Right 15 degrees rudder...
单项选择题A helmsman receives the command Right 15 degrees rudder. The helmsman’s IMMEDIATE reply should be（）.
A.Aye Aye Sir B.Right 15 degrees rudder C.Rudder is right 15 D.No reply is necessary，just carry out the order
“How do you read?” “I read you four”（）.A.excellentB.bad...
单项选择题“How do you read?” “I read you four”（）.
A.excellent B.bad C.fair D.good
