A figure eight knot is used to（）.<br>A:be a stopper<br>B:shorten a line<br>C:join lines of equal size<br>D:keep a line from passing through a sheave

A figure eight knot is used to（）.
A:be a stopper
B:shorten a line
C:join lines of equal size
D:keep a line from passing through a sheave

出自：海船船员证

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