A. The ship needs loading. B. The ship needs discharging. C. The ship needs unloading. D. The ship needs loading and discharging.
A. Bosun, why do we open hatch covers? B. Officer, why do we open hatch covers? C. Bosun, why do we close hatch covers? D. Bosun, why do we open hatches?
A. After operation, start the electric motor. B. Before operation, stop the electric motor. C. Before operation, start the electric motor. D. After operation, stop the electric motor.
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