問題詳情
34 在電線桿或路燈之燈桿綁妥一支水準尺，離開水準尺 D= 50m 處設置水準儀，如下圖所示，分別讀數得l1= 1.623 m 和 l2= 1.591 m，水準管氣泡移動 4 格，則水準管靈敏度： 
(A)17”/格
(B)33”/格
(C)66”/格
(D)132”/格
(A)17”/格
(B)33”/格
(C)66”/格
(D)132”/格
參考答案
答案：B
難度：困難0.333333
統計：A(1),B(1),C(1),D(0),E(0)
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