A large basin cut into the shore，closed off by a caisson，and used for dry docking of ships is known as a ______.A.slipwayB.graving dockC.ground warpD.caisson dock
A large basin cut into the shore，closed off by a caisson，and used for dry docking of ships is known as a ______.
A.slipway
B.graving dock
C.ground warp
D.caisson dock
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