A、MRCC
B、SOSREP
C、MCA
D、3A
更多“（）is a/an aircraft used in SAR.”相关的问题
A、coast to aircraft operational communications B、aircraft to ship operational communications C、lock & bridge communications D、aircraft to ship navigational communications
A、A.The search target is sighted and then lost B、B.More than one vessel is available for a search C、C.The search object is a target that will be readily detected by radar D、D.An aircraft is available to assist a surface vessel
A、AIS is a global tracking system that relies upon INMARSAT C service to communicate vessel position and other safety related information to similarly equipped vessels，aircraft and shore stations within the area B、AIS is a short-range 3 cm X-band radar system that automatically sends a vessel's position and other safety related information to similarly equipped vessels，aircraft and shore stations within the area C、AIS is a short-range VHF-FM system that automatically broadcasts a vessel's position and other safety related information frequently to similarly equipped vessels，aircraft and shore stations within the area D、AIS is a one-way centrally managed system that requires the local VTS to send commands to instruct each vessel to broadcast position and other safety related information to similarly equipped vessels，aircraft and shore stations within the area
A、AIS is a global tracking system that relies upon INMARSAT C service to communicate vessel position and other safety related information to similarly equipped vessels，aircraft and shore stations within the area B、AIS is a short-range 3 cm X-band radar system that automatically sends a vessel's position and other safety related information to similarly equipped vessels，aircraft and shore stations within the area C、AIS is a short-range VHF-FM system that automatically broadcasts a vessel's position and other safety related information frequently to similarly equipped vessels，aircraft and shore stations within the area D、AIS is a one-way centrally managed system that requires the local VTS to send commands to instruct each vessel to broadcast position and other safety related information to similarly equipped vessels，aircraft and shore stations within the area
A、The plane is in distress and will have to ditch B、The plane is going to drop a package and wishes the vessel to recover it C、Someone is in distress in that direction and the vessel should follow and assist D、There is danger ahead and the best course is indicated by the direction of the aircraft
A、The plane is in distress and will have to ditch B、The plane is going to drop a package and wishes the vessel to recover it C、Someone is in distress in that direction and the vessel should follow and assist D、There is danger ahead and the best course is indicated by the direction of the aircraft
A、operates on both military and civilian aircraft distress frequencies B、transmits both an alerting signal and a homing signal C、must be the float free type and automatically activated D、operates with a greater output of signal power
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