Upon arrival at a port, a vessel is not allowed () her ballast water, tanker washings or bilge water and other oily water at will.
A、A.to discharge
B、B.to be discharged
C、C.discharging
D、D.being discharged
A、A.to discharge
B、B.to be discharged
C、C.discharging
D、D.being discharged
A、Hardly had he arrived B、Hardly he had arrived C、No sooner did he arrive D、No sooner arrived he
A、How long have your parents been in Paris? B、When did your parents arrive at Paris? C、Did your parents arrive at Paris last Wednesday? D、When will your parents go to Paris?
A、a vessel arrives at a port in a evening B、a vessel leaves a port in a evening C、a vessel arrives at a port in a morning D、a vessel leaves a port in a morning
A、A.at which/to which B、B.from which/at which C、C.to which/from which D、D.in which/on which
A、at the top center of the next line B、near the chart title C、at the lower left corner D、at any convenient location