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單項(xiàng)選擇題

A pelican hook（）.

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

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單項(xiàng)選擇題

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

單項(xiàng)選擇題

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

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