When removing the cap from a sounding tube on a ship，the sound of air escaping indicates the tank ______．A.Is fullB.May be partially floodedC.Level has droppedD.Is completely flooded
When removing the cap from a sounding tube on a ship，the sound of air escaping indicates the tank ______．
A.Is full
B.May be partially flooded
C.Level has dropped
D.Is completely flooded
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