問題詳情
36. 碳鋼管分歧插管開孔時，宜採用何種工具
(A)中心沖
(B)手弓鋸
(C)鋼鏨
(D)氧乙炔切割器。
(A)中心沖
(B)手弓鋸
(C)鋼鏨
(D)氧乙炔切割器。
參考答案
答案：D
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)
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