单选题A vessel is equipped with cross-connected deep tanks. In which situation should the cross-connection valve be closed? （）AThe tanks lie above the waterline and are filledBThe tanks are partially 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 cross-connection valve be closed? （）
A
The tanks lie above the waterline and are filled
B
The tanks are partially 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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