問題詳情

27. One kind of elements which are in common use for daily maintenance works on the shipis a shaft with a helical thread or groove on its surface with provision on its one end. It is mainlyused as a threaded fastener to hold objects together. What element is above description?
(A) Caliper
(B) Washer
(C) Solder
(D) Screw

參考答案

答案:D
難度:非常簡單1
統計:A(0),B(0),C(0),D(1),E(0)

內容推薦