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

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

出自：海船船员证

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