单项选择题
A.To act as ballast for light vessels B.To provide ventilation and drainage for cargo C.To secure the tarpaulins in place D.To support weakened bulkheads
What is the bow type anchor shackle primarily used for（...
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
What is NOT running rigging（）.A.DownhaulB.BackstayC.Hal...
单项选择题What is NOT running rigging（）.
A.Downhaul B.Backstay C.Halyard D.Sheet
What is normally used to pass a mooring line to a dock（...
单项选择题What is normally used to pass a mooring line to a dock（）.
A.Distance line B.Gantline C.Heaving line D.Tag line
