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

On-scene communications will normally take place between（）.

Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.

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（）.

The advantage of geostationary satellites is（）.

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

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

SOLAS ships shall be equipped with（）.

（）will form the basis for distress alerting and safety calling.