单项选择题
Entries should be made in a Ro-Ro vessel’s cargo-securing device record book for（）.
A.procedures for accepting cargo securing devices
B.procedures for maintaining and repairing cargo-securing devices
C.record of cargo securing device inspections
D.All of the above
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Cargo transfer operations on a tank vessel need NOT be stopped when（）.
A.a tug comes alongside while the tanker is loading grade
B.and E cargoes B. a large，fresh oil spill is discovered immediately adjacent to the side of the tanker
C.there is an electrical storm in the vicinity
D.there is a fire on the dock or on a nearby vessel -
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Between 1830 hrs and 1850 hrs this day，strong gusty winds（）by my vessel，in consequence of which the vessel’s four mooring lines were broken.
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An obstruction on a helodeck is any object that might present a hazard to the（）.
A.rotor blades and landing gear
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