单项选择题
The abbreviation RYC in a marine cable generally stands for（）.
A.referring to your crew B.reference for your captain C.return to your cabin D.received your cable
单项选择题 The angular motion of a ship in the athwart ship is termed（）.
单项选择题 The charges for cleaning（）the oil pollution on sea will be to ship’s account.
单项选择题 The collision bulkhead shall be of（）.
