A star is observed at lower transit. The line of position derived from this sight is（）.<br>A:on the prime vertical<br>B:a latitude line<br>C:a longitude line<br>D:of no special significance

A star is observed at lower transit. The line of position derived from this sight is（）.
A:on the prime vertical
B:a latitude line
C:a longitude line
D:of no special significance

出自：海船船员证

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