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
正确答案是D
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
正确答案是D