A.Dead-reckoning position
B.Estimated position
C.Fix
D.Running fix
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A.encountered
B.met
C.contacted
D.seen
A.the differing light colors
B.one system having odd numbers while the other system has even numbers
C.one system using horizontal bands while the other system uses vertical stripes
D.the difference in the periods of the light
A.the light-house
B.the anchorage
C.the pilot station
D.the light-buoy
A.deep laded vessels
B.deeply load vessels
C.deep loading vessels
D.deeply loaded vessels
A.small circle
B.great circle
C.rhumb line
D.hyperbola
最新試題
Which position includes the effects of wind and current（）.
On a chart，the characteristic of the light on a lighthouse is shown as flashing white with a red sector.The red sector（）.
Which statement concerning current is TRUE（）.
When latitude and longitude are used，these shall be expressed in（）（and decimals of a minute if necessary），north or south of the Equator and east or west of Greenwich.
（） is a defined area within which ships must use particular caution and should follow the recommended direction of traffic flow.
The points on the earth’s surface where the magnetic dip is 90° are（）.
Traffic separation schemes adopted by the IMO are listed in（）.
When using horizontal sextant angles of three objects to fix your position，an indeterminate position will result in which situation（）.
The four standard light colors used for lighted aids to navigation are red，green，white，and （）.
Depiction of TSS's on charts uses（）as the primary color.