阿摩線上測驗
18. Stand by __________ when handling liquid goods onboard ships for pollution prevention.
(A) main engine
(B) spill control gear
(C) anchor gear
(D) auto tension gear
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統計： A(68), B(584), C(60), D(29), E(0) #2883497
統計： A(68), B(584), C(60), D(29), E(0) #2883497