单选题The lashings of a stack of containers with interlocking fittings restrain the forces that cause（）.AtopplingBrackingCbucklingDcrushing
单选题
The lashings of a stack of containers with interlocking fittings restrain the forces that cause（）.
A
toppling
B
racking
C
buckling
D
crushing
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单选题What is the action of "pop" in the context of MPLS switching？（）AIt removes the top label in the MPLS label stack.BIt adds a top label in MPLS label stack.CIt replaces the top label in the MPLS label stack with another value.DIt replaces the top label in the MPLS label stack with a set of labels.ENone of above.
单选题Under normal weather and sea conditions when securing a stack of containers with twist locks，lashings are required when the tier exceeds what height? （）ALashings are always requiredBOne containerCTwo containersDThree containers
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单选题What purpose does a bridge fitting serve when lashing containers?（）.ATies a container stack to the deckBTies a container to the container below itCRestrains racking loadsDRestrains the container against horizontal motion