A.persons in the space wear gas masks
B.persons in the space wear damp cloths over their mouths and nostrils
C.ventilation system is secured and all persons leave the space
D.ventilation system is kept operating
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A.difference between the true course and the compass course
B.momentum of a vessel after her engines have been stopped
C.lateral movement of a vessel downwind of her intended course
D.displa ement of a vessel multiplied by her speed
A.maximum weight allowed
B.stowage space assigned
C.vessel's home port
D.vessel's name
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