單項選擇題Risk of collision exists when an approaching vessel has a(n)().

A.generally steady bearing and decreasing range
B.generally steady range and increasing bearing
C.increasing range and bearing
D.decreasing bearing only


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1.單項選擇題On a gnomonic chart,a great circle track between Los Angeles and Brisbane will appear as a ().

A.loxodromic curve
B.curved line concave to the equator
C.straight line
D.spiral approaching the poles as a limit

2.單項選擇題Mariners proceeding across the main routes are recommended to do so at().

A.as wide an angle as practicable
B.as wide an angle so practicable
C.like wide an angle as practicable
D.like wide as angle so practicable

3.單項選擇題Mariners proceeding across the main routes are()to do so at as wide an angle as practicable.

A.recommended
B.reported
C.applied
D.complied

5.單項選擇題Mainly east 3 or 4 partly cloudy to overcast occasional rain()slowly south moderate or good.

A.spreading
B.proceeding
C.bounding for
D.going to