单选题Which of the following statements describes one of the functions of the ballast system?（）ATo permit flooding of any fuel oil storage tank on any class of shipBTo use it as a secondary service systemCTo store reserve feed or potable water for extended cruisesDTo stabilize the ship by flooding certain designed tanks with seawater
单选题
Which of the following statements describes one of the functions of the ballast system?（）
A
To permit flooding of any fuel oil storage tank on any class of ship
B
To use it as a secondary service system
C
To store reserve feed or potable water for extended cruises
D
To stabilize the ship by flooding certain designed tanks with seawater
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