单项选择题
设AB距离为200.23m,坐标方位角为121°23′36″,则AB的x坐标增量为()。
A.-170.92m
B.170.92m
C.104.30m
D.-104.30m
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单项选择题
A.-170.92m
B.170.92m
C.104.30m
D.-104.30m
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