問題詳情

22. This vessel had a crew of 18 Ukrainian nationals, all of whom were appropriately qualified forthe positions they held on _______ board the ship.
(A) who
(B) which
(C) whom
(D) where

參考答案

答案：C
難度：適中0.595745
統計：A(7),B(22),C(56),D(9),E(0)