Pump out No.2 port ballast tank to（）.<br>A:keep vessel afloating<br>B:refloat vessel listing to port<br>C:make vessel all-right<br>D:bring vessel upright

Pump out No.2 port ballast tank to（）.
A:keep vessel afloating
B:refloat vessel listing to port
C:make vessel all-right
D:bring vessel upright

出自：海船船员证

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