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

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

At least two two-way VHF radiotelephone apparatus shall be provided on every cargo ship of（）tons gross tonnage and upwards but less than 500 tons gross tonnage.

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

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.

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

SOLAS ships shall be equipped with（）.

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.

If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.

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.