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
出自:海船船员证