A.On top of No.1 hatch
B.Beside the hatches,forward of the midships house
C.On top of the hatch immediately forward of the midships house
D.On top of the hatch immediately aft of the midships house
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A.a vessel towing by pushing ahead
B.a power-driven vessel,not towing
C.a barge being pushed ahead
D.either answer A or answer B
A.the towboat vibrates when backing down
B.the roostertail exceeds the height of the main deck
C.a strain is placed on the face wires
D.water comes over the foredeck of the lead barges
A.main string
B.push string
C.power string
D.face string
A.increase the lifting capacity
B.increase the lifting radius
C.protect the slings
D.protect the upper part of a load
A.to the base of the foremast
B.to the forward-most bitts
C.to the forward part of the deckhouse
D.at the stern
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