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.

SOLAS ships shall be equipped with（）.

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

International Navtex service means the coordinated broadcast and automatic reception on（）khz of maritime safety information by narrow-band direct-printing telegraphy using English language.

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.

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

In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.

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

The priority of EGC messages is classified by（）.

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