单选题When navigating in high latitudes and using a chart based on a Lambert conformal projection,().Aa straight line drawn on the chart approximates a great circleBthe chart should not be used outside of the standard parallelsCthe course angle is measured at the mid-longitude of the track lineDdistance cannot be measured directly from the chart
单选题
When navigating in high latitudes and using a chart based on a Lambert conformal projection,().
A
a straight line drawn on the chart approximates a great circle
B
the chart should not be used outside of the standard parallels
C
the course angle is measured at the mid-longitude of the track line
D
distance cannot be measured directly from the chart
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