Please use（）for（）.

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

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

COSPAS-SARSAT is intended to be used for（）.

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

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

SOLAS ships shall be equipped with（）.

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

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.

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.