单选题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（）.Alocal hour angleBazimuth angleCmeridian angleDlongitude
单选题
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
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