An inert gas system installed on a tanker is designed to（）.<br>A:aid in the stripping and cleaning of cargo tanks<br>B:increase the rate of discharge of cargo<br>C:force toxic and explosive fumes from a cargo tank to vent to the outside atmosphere<br>D:lower the oxygen levels inside cargo tanks，making explosion nearly impossible

An inert gas system installed on a tanker is designed to（）.
A:aid in the stripping and cleaning of cargo tanks
B:increase the rate of discharge of cargo
C:force toxic and explosive fumes from a cargo tank to vent to the outside atmosphere
D:lower the oxygen levels inside cargo tanks，making explosion nearly impossible

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