单项选择题
What is NOT an advantage of the rhumb line track over a great circle track? （）
A.Easily plotted on a Mercator chart B.Negligible increase in distance on east-west courses near the equator C.Does not require constant course changes D.Plots as a straight line on Lambert conformal charts
单项选择题 What information is NOT found in the chart title? （）
单项选择题 What information is found in the chart title? （）
单项选择题 What defines a great circle? （）
