单项选择题

A long splice in a line（）.

A.is used in running rigging
B.doubles the size of the line
C.is only used on fiber rope
D.is very weak

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单项选择题

A.longshore hook
B.margin hook
C.marginal hook
D.pelican hook

单项选择题

A.be a stopper
B.shorten a line
C.join lines of equal size
D.keep a line from passing through a sheave

单项选择题

A.rot
B.shrink
C.stretch
D.unlay