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
单项选择题 What is NOT running rigging（）.
单项选择题 What is normally used to pass a mooring line to a dock（）.
单项选择题 What is meant by the term two-blocked（）.
