单选题A vessel is equipped with cross-connected deep tanks.In which situation should the crossconnection valve be closed?（）.AThe tank lie above the waterline and are filledBThe tank are partically filled with dry cargoCThe tanks are partially filled with liquid cargoDThe tanks are filled and lie below the waterline
单选题
A vessel is equipped with cross-connected deep tanks.In which situation should the crossconnection valve be closed?（）.
A
The tank lie above the waterline and are filled
B
The tank are partically filled with dry cargo
C
The tanks are partially filled with liquid cargo
D
The tanks are filled and lie below the waterline
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