单项选择题

（）provide athwartship support for the mast or king posts.

A.Shrouds
B.King posts
C.Stays
D.Turnbuckles

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单项选择题

（）are used for anchor gear in marine work where the chains must withstand the corrosive effects of seawater.

A.Chains
B.Wires
C.Ropes
D.Lines

单项选择题

（） are two vertical supports，usually steel，one each side of the centerline of the ship used to support booms.

A.Shrouds
B.King posts
C.Stays
D.Turnbuckles

单项选择题

What is the primary disadvantage of a permanent chain chaser system?（）

A.It requires anchor handling boats with more horsepower
B.Chain chasers work in shallow water only
C.Chain chasers will not work with piggyback anchors
D.It takes longer to deploy anchors using chain chasers