複選題

80. 如下圖,已知 Ea =100.000m、Na=300.000m、Eb =180.000m、Nb =330.000m,觀測 5df7144a2279f.jpg=60.000m、5df71464e90df.jpg =70.000m,下列敘述哪些正確?
(A)∠BA P=54°15 '57"
(B)ψA P =123°37 '35"
(C)ψA B =69°26 '38"
(D)Np=266.773m。5df7149bc0ff6.jpg

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統計: A(0), B(2), C(2), D(2), E(0) #2126505