单项选择题

What is the bow type anchor shackle primarily used for（）.

A.Chain to chain connections
B.Chain to anchor connections
C.Kenter link to anchor connections
D.Wire rope connections

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单项选择题

A.Downhaul
B.Backstay
C.Halyard
D.Sheet

单项选择题

A.Distance line
B.Gantline
C.Heaving line
D.Tag line

单项选择题

A.The bottom block touches the top block
B.The line has jumped the sheaves
C.There are turns in the fall
D.You have two blocks