690. 數值法土地鑑界,以A 點為測站,以AB為照準方向,依坐標反算圖根點AB 之方位角為123°45′30",AP之方位角為45°54′40″,則觀測P點之夾角為何?
(A)190°19'50"
(B)77°50'50"
(C)169°40' 10"
(D)282°09′10″
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統計: A(0), B(2), C(2), D(8), E(0) #3485075
統計: A(0), B(2), C(2), D(8), E(0) #3485075