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For existing ships，（）is not an improvement to safety.

A.the reinforcement of the aft transverse watertight bulkhead
B.the double bottom structure in way of the foremost cargo hold
C.the introduction of a more rigorous survey regime and greater attention to operating procedures
D.introduction of new and improved designs

單項(xiàng)選擇題

Floors aboard ship are（）.

A.frames to which the tank top and bottom shell are fastened on a double bottomed ship
B.transverse members of the ships frame which support the decks
C.longitudinal beams in the extreme bottom of a ship from which the ship's ribs start
D.longitudinal angle bars fastened to a surface for strength

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The extension of the after part of the keel in a single-screw vessel upon which the stern post rests is called the（）.

你可能感興趣的試題

For existing ships，（）is not an improvement to safety.

Floors aboard ship are（）.

For existing ships，（）is not an improvement to safety.