A cargo tank that is initially gas freed，can be inerted by introducing inert gas by a process known as（）.<br>A:dilution<br>B:displacement<br>C:precipitation<br>D:Either A or B

A cargo tank that is initially gas freed，can be inerted by introducing inert gas by a process known as（）.
A:dilution
B:displacement
C:precipitation
D:Either A or B

出自：海船船员证

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