单选题Progressive flooding on a ship is controlled by securing watertight boundaries and（）.Atransferring drill waterBdumping bulk materialsCpumping out flooded compartmentsDevacuating the unit
单选题
Progressive flooding on a ship is controlled by securing watertight boundaries and（）.
A
transferring drill water
B
dumping bulk materials
C
pumping out flooded compartments
D
evacuating the unit
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