单项选择题
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
单项选择题 A long pole with a hook at one end，used to reach for lines，is known as a（）.
单项选择题 A lashing used to secure two barges side by side，lashed in an X fashion，is called a（）.
