单选题Large quantities of uncovered pig iron or billets should not be carried in the upper-tween decks because（）.Athis does not eliminate the risk of cargo shiftingBthis will increase the metacentric height of the shipCthis will decrease the gravity height of the shipDthis will reduce the rolling period of the ship
单选题
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
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