单项选择题
Galvanizing would be suitable for protecting wire rope which is used for（）.
A.cargo runners
B.stays
C.topping lifts
D.All of the above
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A.fatigue
B.corrosion
C.distortion
D.abrasion -
单项选择题
Cribbing is（）.
A.wooden blocks or dunnage placed between a deck load and the deck
B.the chains and shackles used to secure a deck cargo
C.a crate in which a deck cargo is packaged
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单项选择题
Compared to manila line，size for size，nylon line（）.
A.has less strength than manila line
B.has more strength than manila line
C.is equivalent to manila line
D.will rot quicker than manila line
