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單項(xiàng)選擇題

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

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單項(xiàng)選擇題

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

單項(xiàng)選擇題

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