单选题If the buoyant force on a ship’s hull is equal to the displacement tonnage，the ship will（）.Arequire ballastBbe down by the headCsinkDfloat
单选题
If the buoyant force on a ship’s hull is equal to the displacement tonnage，the ship will（）.
A
require ballast
B
be down by the head
C
sink
D
float
参考解析
解析：
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