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单选题
A stopper used in securing the ground tackle for sea that consists of a grab attached to a turnbuckle is a（）.
A
riding pawl
B
buckler
C
devil's claw
D
locking ring
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A stopper used in securing the ground tackle for sea that consists of a grab attached to a turnbuckle is a ______.A.riding pawlB.bucklerC.devil’s clawD.locking ring
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device for securing a chain topping liftB
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type of clam bucket used for discharging bulk cargo
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单选题A sea anchor is（）.A
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a padeye to which the sea painter is made fastD
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判断题Ground transport is typically more affordable than air， but more expensive than sea especially in developing countries where inland infrastructure is not efficient.A
对B
错
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a short length of line used for temporarily holding another lineB
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join two lines of different sizesB
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threefold purchaseC
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Sweep Intercept
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单选题Peck and Hale gear is used most commonly for securing（）.A
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baled cargoC
large wooden cratesD
palletized cargo
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