单项选择题

A.specialB.differentC.expensiveD.valuableThe broadcast ……

The broadcast of MSI is made on two dedicated systems. “dedicated” means（）.

A.special
B.different
C.expensive
D.valuable

<上一题目录下一题>

热门试题

单项选择题A SART can be fixed on（）.

A.a mother ship
B.a lifeboat
C.a life craft
D.all of A,B,C

单项选择题All stations which receive a distress alert shall immediately cease（）.

A.any transmission
B.any harmful transmission
C.to use radiotelephone
D.using radiotelephone

单项选择题When receiving a distress alert, the SAR authorities ashore and the ships in the vicinity of the ship in distress will（）soonest.

A.reach the distress area
B.conduct a sector search
C.send rescue vessels
D.assist coordinately in SAR operation

单项选择题In the GMDSS, distress alerting can be transmitted in（）directions.

A.1
B.2
C.3
D.4

单项选择题We（）the distress signal on our own radio before the shore station relayed it to us.

A.received alreadly
B.have received
C.had received
D.was receiving