已知到达点经度λ2=008°35'.3W,两地间的经差Dλ=18°17'.9W,则起
题型:单项选择题
问题:
已知到达点经度λ2=008°35'.3W,两地间的经差Dλ=18°17'.9W,则起航点经度λ1为()。
A.010°19'.4E
B.010°19'.4W
C.009°42'.6E
D.026°55'.2W
已知到达点经度λ2=008°35'.3W,两地间的经差Dλ=18°17'.9W,则起航点经度λ1为()。
A.010°19'.4E
B.010°19'.4W
C.009°42'.6E
D.026°55'.2W