单项选择题
A hook that will release quickly is a（）.
A.longshore hook
B.margin hook
C.marginal hook
D.pelican hook
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单项选择题
（）should not be considered as components as fire installations.
A.fire pumps
B.fire mains
C.hydrants and hoses
D.closing appliances which are kept permanently closed at sea -
单项选择题
（） is not the information necessary for the master to obtain guidance as to the stability of the ship.
A.a curve of minimum operational metacentric height（GM）versus draught
B.instructions concerning the operation of cross-flooding arrangements
C.the signals or lights being exhibited or sounded
D.all other data and aids which might be necessary to maintain stability after damage -
单项选择题
Which document lists all the lifesaving equipment required for a vessel? （）
A.Certificate of Inspection
B.American Bureau of Shipping Classification Certificate
C.International Convention for the Safety of Life at Sea Certificate
D.Certificate of Registry
