Large quantities of uncovered pig iron or billets should not be carried in the upper-tween decks because（）.<br>A:this does not eliminate the risk of cargo shifting<br>B:this will increase the metacentric height of the ship<br>C:this will decrease the gravity height of the ship<br>D:this will reduce the rolling period of the ship

Large quantities of uncovered pig iron or billets should not be carried in the upper-tween decks because（）.
A:this does not eliminate the risk of cargo shifting
B:this will increase the metacentric height of the ship
C:this will decrease the gravity height of the ship
D:this will reduce the rolling period of the ship

出自：海船船员证

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