题目详情
单选题 Distance along a track line is measured on a Mercator chart by using the _______.( )
A. latitude scale near the middle of the track line
B. longitude scale near the middle of the track line
C. latitude scale at the mid-latitude of the chart
D. latitude or longitude scale at the middle of the scale

学科:默认课程
时间:2026-01-12 08:28:11
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