单项选择题

Fishing stake，the position of which frequently（），exist in the area covered by this chart.

A.removed
B.altered
C.corrected
D.converted

相关考题

Except for N-S courses，and E-W courses on the equator，a...

单项选择题Except for N-S courses，and E-W courses on the equator，a great circle track between two points，when compared to a rhumb line track between the same two points，will（）.

A.always be nearer to the equator
B.always be nearer to the elevated pole
C.be nearer to the pole in the Northern Hemisphere and nearer to the equator in the Southern Hemisphere
D.be nearer to the pole or the equator depending on the latitudes of the arrival and departure positions

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单项选择题Buoys which only mark the left or right side of the channel will never exhibit a light with which characteristic? （）

A.Flashing
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C.Composite group flashing
D.Equal interval (isophase)

Buoys which mark isolated dangers are painted with alte...

单项选择题Buoys which mark isolated dangers are painted with alternating（）.

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航海学基本知识

Fishing stake，the position of which frequently（），exist in the area covered by this chart.