单项选择题
A.abeam
B.dead astern
C.just aft of the bow
D.on either side of the stern
单项选择题 A tonnage tax is levied according to the（）.
单项选择题 A crew member reports that the high-pressure alarm light of a low-pressure CO2 fixed fire extinguishing system is illuminated. The most probable cause of this condition would be that（）.
单项选择题 A crew member is having an epileptic convulsion. You should（）.