問題詳情
29.在車刀研磨中，研磨「碳化物刀具」宜選用何種砂輪？
(A) C
(B) GC
(C) A
(D) WA
(A) C
(B) GC
(C) A
(D) WA
參考答案
答案：B
難度：簡單0.785124
統計：A(19),B(190),C(5),D(28),E(0)
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