A、a dummy antenna
B、a supporting facilities
C、a back-up equipment
D、an antenna
更多“Every lifeboat which is fitted with a fixed two-way VHF radiotelephone apparatus with（）which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in is operating position.”相关的问题
A、at the beginning of every watch B、at the beginning of the first watch every day C、at the completion of every watch D、at noon every day
A、Which survival craft was used in the drill B、The number of each lifeboat not lowered during each drill C、Only the number of each motor propelled lifeboat that is lowered D、The length of time an oar propelled lifeboat is rowed
A、Which survival craft was used in the drill B、The number of each lifeboat not lowered during each drill C、Only the number of each motor propelled lifeboat that is lowered D、The length of time an oar propelled lifeboat is rowed
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