問題詳情

22. During ____, the ship is secured to the pier with mooring lines while the main engines areused to drive the propeller.
(A) plant trials
(B) sea trials
(C) dock trials
(D) launched trials

參考答案

答案：C
難度：簡單0.777778
統計：A(1),B(3),C(14),D(0),E(0)