单项选择题

In relation to cargo gear,what does SWL mean?（）.

A.Safe working load
B.Ships working lift
C.Starboard wing lift
D.Stress , weight , load

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单项选择题

In relation to the turning circle of a ship , the term advance means the distance（）.

A.gained at right angles to the original course
B.gained in the direction of the original course
C.moved sidewise from the original course when the rudder is first put over
D.around the circumference of the turning circle

单项选择题

In relation to the turning circle of a ship , the term kick means the distance（）.

A.around the circumference of the turning circle
B.gained at right angles to the original course
C.gained in the direction of the original course
D.or throw of a vessels stern from her line of advance upon putting the helm hard over