单选题我船航向010°,某船位于我船左舷40°,若该船航向为270°,则我船位于该船舷角()。A120°左B120°右C30°右D30°左
单选题
我船航向010°,某船位于我船左舷40°,若该船航向为270°,则我船位于该船舷角()。
A
120°左
B
120°右
C
30°右
D
30°左
参考解析
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