阿摩線上測驗
12. __________ is often an experienced seaman who is familiar with the steer operation and
the characteristics of the ship.
(A) petty officer
(B) helmsmen
(C) cadet
(D) rating
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統計： A(1), B(22), C(1), D(7), E(0) #3279034
統計： A(1), B(22), C(1), D(7), E(0) #3279034
