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

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

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

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

We consider（）send a helicopter with medical facilities to the distress area.

The advantage of geostationary satellites is（）.

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

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

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

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