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（）.AAll wing voids and rakes are pumped dry before tying off the bargeBThe barge is moored next to the bank where it will be protected from a possible collisionCThe barge is under the care of a watchmanDA rake end is facing upstream to minimize the effect of current on the mooring lines
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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