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[单选题]高炉内型增大炉腹高度会使()。
A. A、炉料在炉腹区停留加长,减轻炉缸熔炼负荷
B. B、不利于炉缸熔炼
C. C、高炉顺行受到影响
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[单选题]In tanker trade,the signing by master the documents relating to the use of jetties and berths ()the shipowners thereby to pay for any damage caused to the jetties or berths by the vessel’s using them.
A. ties
B. binds
C. does
D. ha
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