单项选择题
(A)平锉; (B)方锉; (C)什锦组锉; (D)圆锉
(A)0.6kg; (B)0.65kg; (C)0.75kg; (D)0.85kg
(A)100mm; (B)200mm; (C)300mm; (D)400mm
(A)锤头质量(kg); (B)锤头质量(g); (C)锤手柄长度(in); (D)锤手柄长度(mm)
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