单项选择题
Bags are usually stowed in between the bulk grain（）.
A.to ventilate the hold
B.to separate the cargo
C.to replace shifting boards
D.to facilitate stowage
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相关考题
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Atmospheres laden with coal dust or grain dust caused by loading these cargoes（）.
A.require loading operations to be shut down until the atmosphere clears
B.are toxic to human life
C.are subject to spontaneous combustion
D.may be explosive in some concentrations -
单项选择题
A venetian vent or rice ventilator is used in stowage of which cargo?（）.
A.Bagged cargo
B.Bulk grain
C.Bulk rice
D.Refrigerated goods -
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A grapnel is a（）.
A.device for securing a chain topping lift
B.hook to prevent the anchor cable from slipping
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D.type of clam bucket used for discharging bulk cargo
