A.兩地經(jīng)差 B.時差 C.兩地緯差 D.視差
A.兩地的緯差 B.兩地的經(jīng)差 C.兩時區(qū)中線經(jīng)度之差 D.測者的經(jīng)度
A.2010(12/5) B.1510(12/5) C.0110(12/5) D.0110(13/5)