問題詳情
28. 水準測量之標尺墊，其功用為使標尺能
(A)位置及高度固定
(B)易變換位置
(C)不前後傾斜
(D)不左右偏移。
(A)位置及高度固定
(B)易變換位置
(C)不前後傾斜
(D)不左右偏移。
參考答案
無參考答案
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