单项选择题

Prior to getting underway in fresh or brackish water，the Master must（）.

A.log the density of the water
B.secure all overboard discharges
C.take on fresh water ballast
D.clean the sides with fresh water

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单项选择题

A.a marine chemist
B.the Officer in Charge，Marine Inspection
C.the Master or person in charge of the ship
D.the National Fire Protection Association

单项选择题

A.Certificate of Inspection
B.Official Log
C.Certificate of Documentation
D.Shipping Articles

单项选择题

A.the specifications
B.the facts
C.the descriptions
D.the details