单项选择题
Proper GMDSS watchkeeping includes（）.
A.understanding the GMDSS console's normal operational indicators
B.maintaining a proper GMDSS radio station log
C.responding to and comprehending alarms
D.All of the above
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相关考题
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单项选择题
Proper GMDSS watchkeeping includes（）.
A.monitoring all required frequencies in the proper mode
B.reading all displays and/or printouts after silencing an alarm
C.notifying the Master of any distress alerts
D.All of the above -
单项选择题
Our ship（）with many modern navigational instruments.
A.equipped
B.is equipped
C.equips
D.has equipped -
单项选择题
One method of reducing the length of radio transmissions without distorting the meaning of your words is by using（）.
A.slang
B.secret codes
C.procedure words
D.analogies
