单项选择题

The range of a SSB transmission is MOST affected by ______．
A.Atmospheric noise and radiated power
B.The frequency band selected and time of day or night
C.Interference and position of the moon
D.Radiated power and nearness to shore

A.A.Atmospheric
B.The
C.Interference
D.Radiated
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单项选择题
A.135kN·mB.45kN·mC.240kN·mD.80kN·m
A.135kN·m
B.45kN·m
C.240kN·m
D.80kN·m
单项选择题
______ is not an alarm required by IMO standards to be available on the ECDIS．A.Deviating from a planned routeB.Approach to waypoints and other critical pointsC.Light house detectingD.Larger scale chart available
A.A.Deviating
B.Approach
C.Light
D.Larger
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