The priority of EGC messages is classified by（）.

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

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.

The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.

Particular care should be（）in selecting CESs in areas where Ocean Regions overlap.

Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.

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

Please use（）for（）.

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

Radio beacon can be activated（）in case of distress.