4. 0.001 吋等於 (A)0.254mm(B)0.0254mm(C)0.00254mm(D)0.000254mm。

問題詳情

4. 0.001 吋等於
(A)0.254mm
(B)0.0254mm
(C)0.00254mm
(D)0.000254mm。

參考答案

答案：B
難度：簡單0.75
統計：A(11),B(63),C(5),D(1),E(0)