The distance from the still water level (corrected for tides and storm surge) to the bottom of the hull of a ship is the（）.<br>A:air gap<br>B:freeboard<br>C:penetration<br>D:water depth

The distance from the still water level (corrected for tides and storm surge) to the bottom of the hull of a ship is the（）.
A:air gap
B:freeboard
C:penetration
D:water depth

出自：海船船员证

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