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【单选题】

You have orders to drop off a barge loaded with propylene oxide at a fleet.In doing so，you must ensure that（）.

A、All wing voids and rakes are pumped dry before tying off the barge

B、The barge is moored next to the bank where it will be protected from a possible collision

C、The barge is under the care of a watchman

D、A rake end is facing upstream to minimize the effect of current on the mooring lines

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第9题

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第10题

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