單項選擇題An（）indicates that there is imminent risk for navigation.
A.distress alert
B.urgency message
C.safety message
D.routine message
您可能感興趣的試卷
你可能感興趣的試題
1.單項選擇題A(n)（）indicates that there is serious danger for vessel, crew and passenger.
A.distress alert
B.urgency message
C.safety message
D.routine message
2.單項選擇題A(n)（）indicates that is serious and inmmediate danger for vessel, crew and passengers.
A.distress alert
B.urgency message
C.safety message
D.routine message
最新試題
ECDIS must be able to perform all of the following EXCEPT（）.
題型：單項選擇題
（）is on the panel of radar.
題型：單項選擇題
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
題型：單項選擇題
Berthing means bringing a vessel to her berth until（）.
題型：單項選擇題
Which of the following is not a form of precipitation?（）
題型：單項選擇題