單項選擇題

A lateral system buoy displaying a quick light（）.

A.should be passed close aboard on either side
B.indicates that special caution is required
C.is used at a channel bifurcation or junction
D.is painted with red and white vertical stripes

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單項選擇題

A great circle track provides the maximum saving in distance on（）.

A.easterly courses in high latitudes
B.southerly courses in high latitudes
C.westerly courses in low latitudes
D.easterly courses in low latitudes that cross the equator

單項選擇題

A gnomonic projection is based on a(n)（）.

A.plane tangent at one point
B.cylinder tangent at the equator
C.cone tangent at one parallel
D.infinite series of cones tangent at selected parallels

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A lateral system buoy displaying a quick light（）.

你可能感興趣的試題

A great circle track provides the maximum saving in distance on（）.

A gnomonic projection is based on a(n)（）.

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