问题
单项选择题
（）refers to the angle between true North and heading line of the vessel.
A.True position
B.True meridian
C.True course
D.True bearing
答案
参考答案：C
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（）refers to the angle between true North and heading line of the vessel.
A.True position
B.True meridian
C.True course
D.True bearing
参考答案：C