单项选择题
A.countries B.states C.names D.groups
At least two two-way VHF radiotelephone apparatus shall...
单项选择题At least two two-way VHF radiotelephone apparatus shall be provided on every cargo ship of（）tons gross tonnage and upwards but less than 500 tons gross tonnage.
A.200 B.300 C.400 D.800
Every lifeboat which is fitted with a fixed two-way vhf...
单项选择题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 its operating position.
A.a dummy antenna B.a supporting facilities C.a back-up equipment D.an antenna
Every lifeboat which is fitted with a fixed two-way（）ra...
单项选择题Every lifeboat which is fitted with a fixed two-way（）radiotelephone apparatus with an antenna which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
A.HF B.VHF C.MF D.MF/HF
