15.某船測一燈塔,已知磁方位為277°、當地磁差為2° E、羅經差為9° E,則該燈塔之真方位應為:
(A)268°
(B)275°
(C)279°
(D)288°
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統計: A(0), B(0), C(0), D(2), E(0) #2401531
統計: A(0), B(0), C(0), D(2), E(0) #2401531