38. One of the Chief Officer’s duty is to establish the schedules for firefighting and lifeboat ______ and trainings.
(A) rigs
(B) suits
(C) kits
(D) drills
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統計: A(0), B(0), C(0), D(1), E(0) #3833752
統計: A(0), B(0), C(0), D(1), E(0) #3833752