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

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.

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

Every lifeboat which is fitted with a fixed two-way vhf radiotelephone apparatus with（）which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.

The frequency（）the safety message will be transmitted shall be included in DSC safety call.

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

（）by an ice-breaker, it is important to maintain a continuous listening watch on the appropriate VHF channel and to maintain a proper look-out for sound and visual signals.

Ship-to-ship distress alerting should be conducted by（）.

SOLAS ships shall be equipped with（）.

The advantage of geostationary satellites is（）.