The priority of EGC messages is classified by（）.

As each MSI message will have a unique identity, the printing of messages already received correctly is（）.

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

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

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.

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

Radio communication（）for many years and helps to save tens of thousands of lives.

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

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

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