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.

Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）

SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.

Please use（）for（）.

Stations in the United States of America are grouped by states arranged in the alphabetical order of their（）.

If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.

We consider（）send a helicopter with medical facilities to the distress area.

In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.

The rescue coordination center may（）on stations which interfere with traffic.

What following is not among the function of SOLAS ships?（）