A.a safety line attached to a man working over the side……

单项选择题A “bowline” is used to（）.

A.join lines of equal size
B.form a temporary eye (loop) at the end of a line
C.be a stopper
D.keep a line from fraying

单项选择题“safe speed” is defined as that speed where（）.

A.you can stop within your visibility range
B.you can take proper and effective action to avoid collision
C.you are traveling slower than surrounding vessels
D.no wake comes from your vessel

单项选择题Deep-sea liners are（）.

A.ferries
B.passenger liners
C.cruise ships
D.ocean going vessels

单项选择题The document which shows a vessel’s nationality，ownership，and tonnage is the（）.

A.Manifest Certificate
B.Bill of Lading Certificate
C.Certificate of Nationality
D.Official Logbook

单项选择题The Tonnage Certificate gives the（）of a ship which is classified into gross tonnage and net tonnage.

A.specifications
B.descriptions
C.dimensions
D.prescriptions