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

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.

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

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

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.

（）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.

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

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.

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