单选题Deck cranes require（） time to prepare for working cargo than derricks.AlessBmoreCmanyDmuch
单选题
Deck cranes require（） time to prepare for working cargo than derricks.
A
less
B
more
C
many
D
much
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What would NOT require that a detailed report of the release of hazardous cargo be made to the Department of Transportation?A.The valve on an empty portable tank that contained acetone is accidently opened and some of the residue escapes to the open seaB.A carboy of nitric acid is broken on deck while loading and is flushed overboard with no injury or damageC.Part of your deck cargo of five gallon cans of paint is damaged and leaking so you jettison them to eliminate the fire hazardD.Heavy weather causes damage to packages of a hazardous liquid that is subsequently pumped out at sea through the bilge pumping system.
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What is/are the advantage（s）of cranes over conventional cargo booms ________．A.Cranes are able to pick up and drop loads over a greater spotting areaB.Increased safety because the deck is clear of running and standing riggingC.Simplicity of operation of the crane by its operatorD.All of the above
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