单选题When flammable liquids are handled in a compartment on a vessel，the ventilation for that area should be（）.Aoperated continuously while vapors may be presentBoperated intermittently to remove vaporsCavailable on standby for immediate useDshut down if an explosive mixture is present
单选题
When flammable liquids are handled in a compartment on a vessel，the ventilation for that area should be（）.
A
operated continuously while vapors may be present
B
operated intermittently to remove vapors
C
available on standby for immediate use
D
shut down if an explosive mixture is present
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