单项选择题
The Third Officer’s duty is to（）when vessel is commanded under the pilot or Captain.
A.Operate the wheel and stand by B.Keep a lookout and operate steering gear C.Enter telegraph orders in the bell book D.Operate the telegraph and enter telegraph orders in the bell book
单项选择题 The person on a ship who is responsible for maintaining the engineering spaces in a clean and sanitary condition is the（）.
单项选择题 The master shall be（）the marine environment when taking collision-avoiding action.
单项选择题 The Master may have his/her license suspended or revoked for（）.
