GMDSS
鑻辫闃呰闄勫姞棰?/p>
1.Which transmissions are pe? on the fre? 3174.5KHz in NBDP service?
A.Distress and safety traffic using narrow-band direct-printing telagraph
exclusively
B.Transmissions
of
information
regarding
the
safety
of
navigation
and
weather warnings
C.Distress and safety traffic in radiotelephony
D.Transmissions of the international NA
VTEX system
閫?/p>
A
2.For
COSPAS-SARSAT
system,______usually
transmit
initial
COSPAS-SARSAT alert
A.RCC
B.MCC
C.LUT
D.MRCC