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單項(xiàng)選擇題

A metal ring on the bottom of a block，to which the standing part of a tackle is spliced，is known as a(n)（）.

A.becket
B.loop
C.swivel
D.eye

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單項(xiàng)選擇題

A metal object on the pier resembling a tree stump and made to receive mooring lines is a（）.

A.bight
B.bollard
C.chock
D.camel

單項(xiàng)選擇題

A metal eye spliced into a wire is called a（）.

A.cyclops
B.fish eye
C.thimble
D.chip