单项选择题
Keel scantlings of any vessel are greatest amidships because（）.
A.connections between forebody and afterbody are most crucial
B.of maximum longitudinal bending moments
C.of severest racking stresses
D.resistance to grounding is at a maximum amidships
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A.placing bunker on the deck
B.building a stage on which to place the cargo
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D.erecting vertical pillars under the deck to support the cargo -
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A.pump fuel oil from midships to the ends of the vessel
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A.bow
B.mid-section
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