The priority of EGC messages is classified by（）.

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

Distress traffic is the communication（）between the station in distress and the ships, aircraft, coast radio stations, coast earth stations and rescue centers participating in the rescue work.

For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.

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

Radiotelephony communication or radio telex communication or both will be carried out by terrestrial or satellite means,（）the equipment fitted on ship and the area in which the incident occurs.

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.

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

The vessel has stayed in port for seven days because she needs（）.

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