問題詳情
47. 鑿刀之刃口應磨成
(A)平直
(B)略有凸形
(C)略有凹形
(D)略有傾斜。
(A)平直
(B)略有凸形
(C)略有凹形
(D)略有傾斜。
參考答案
答案：A
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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