A.rigging a back stay
B.raising the boom
C.increasing the mechanical advantage of the cargo purchase
D.taking all slack out of the preventer
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A.provide
B.provides
C.providing
D.be provided
A.braces
B.dunnage
C.shores
D.toms
A.cargo elevators
B.conveyor belts
C.ramps
D.derricks and winches for cargo handling
A.insure
B.ensure
C.assure
D.assume
A.at
B.in
C.on
D.by
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The patches where rust have been removed should be wiped clean before paint is（）.
Vessels transiting the canal must have their accommodation ladders and cargo booms（）.
The worn-out bags are all second-hand ones（）stated in the Shipping Order.
The remarks are not similar（）those on the Shipping Orders.
Variation is not constant; it is different with every change in（）.
Roll-on／roll-off ships are equipped with（）.
Precautionary measures must be taken to（）safety of the stevedores，cargo and the ship.
Please stow the drums（）ends.
The terms cant frame and counter are associated with the vessel’s（）.
The National Cargo Bureau represents the（）.