单项选择题
A.can be released while under strain B.is used for boat falls C.is used for extra heavy loads D.is used for light loads only
A long pole with a hook at one end，used to reach for li...
单项选择题A long pole with a hook at one end，used to reach for lines，is known as a（）.
A.pike pole B.jack staff C.line rod D.hooker
A lashing used to secure two barges side by side，lashed...
单项选择题A lashing used to secure two barges side by side，lashed in an X fashion，is called a（）.
A.quarter line B.back line C.peg line D.jockey line
A.backing wire B.scissor wire C.face wire D.breast wire
