問題詳情
30 於測站 A 設置經緯儀，正鏡觀測 B、C 兩點水平角讀數分別為 194°27’35”和 255°59’50”，倒鏡觀測 B、C兩點水平角讀數分別為 14°28’05”和 76°00’25”，則由正倒鏡平均值計算得到水平角 BAC 為：
(A)61°32’15”
(B) 61°32’20”
(C) 61°32’12”
(D) 61°32’18”
(A)61°32’15”
(B) 61°32’20”
(C) 61°32’12”
(D) 61°32’18”
參考答案
答案：D
難度：非常困難0
統計：A(1),B(2),C(0),D(0),E(0) #
個人：尚未作答 書單：沒有書單，新增
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