The angle measured at the observer’s meridian from the elevated pole，clockwise or counterclockwise up to 180°，to the vertical circle of the body is the（）.<br>A:local hour angle<br>B:azimuth angle<br>C:meridian angle<br>D:longitude

The angle measured at the observer’s meridian from the elevated pole，clockwise or counterclockwise up to 180°，to the vertical circle of the body is the（）.
A:local hour angle
B:azimuth angle
C:meridian angle
D:longitude

出自：海船船员证

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