A.interrupted quick flashing
B.composite group flashing
C.Morse (A)
D.quick flashing
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A.with part of it extending above the water
B.that can be detected by water turbulence
C.that drops off sharply
D.perpendicular to the current
A.Great Circle
B.Position Line
C.Rhumb line
D.True Bearing
A.dead reckoning
B.dead weight
C.dead slow ahead
D.dead slow astern
A.difference between the true course and the compass course
B.momentum of a vessel after her engines have been stopped
C.lateral movement of a vessel downwind of her intended course
D.displacement of a vessel multiplied by her speed
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Traffic separation schemes adopted by the IMO are listed in（）.
How would you pass a red buoy in the maritime buoyage system“A” （）.
When navigating a vessel，you（）.
Which of the following are data layer categories to be displayed on ECDIS（）．
Depiction of TSS's on charts uses（）as the primary color.
When approaching a preferred-channel buoy，the best channel is NOT indicated by the（）.
On a chart，the characteristic of the light on a lighthouse is shown as flashing white with a red sector.The red sector（）.
Which position includes the effects of wind and current（）.
The equator is（）.
When navigating a vessel，you（）.