問題詳情
34.若錐度1：20，沿軸向每前進80mm，其直徑差為多少？
(A) 2㎜
(B) 3㎜
(C) 4㎜
(D) 5㎜
(A) 2㎜
(B) 3㎜
(C) 4㎜
(D) 5㎜
參考答案
答案：C
難度：非常簡單0.903846
統計：A(11),B(7),C(188),D(2),E(0)
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