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單項(xiàng)選擇題

The path that a vessel is expected to follow，represented on a chart by a line drawn from the point of departure to the point of arrival，is the（）.

A.DR plot
B.track line
C.heading
D.estimated course

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單項(xiàng)選擇題

The only cylindrical chart projection widely used for navigation is the （）.

A.Lambert conformal
B.Mercator
C.azimuthal
D.gnomonic

單項(xiàng)選擇題

The numeral in the center of a wind rose circle on a pilot chart indicates the （）.

A.total number of observations
B.average wind force on the Beaufort scale
C.average wind force in knots
D.percentage of calms

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