單項(xiàng)選擇題

A serving mallet is used in（）.

A.covering wire or fiber rope
B.forcing fids into a line
C.dogging hatches
D.splicing lines

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A sea anchor is（）.

A.a heavy anchor with an extra long line used to anchor in deep water
B.a cone shaped bag used to slow down the wind drift effect
C.a padeye to which the sea painter is made fast
D.made of wood if it is of an approved type

單項(xiàng)選擇題

A safety shackle is identified by its（）.

A.shape
B.pin
C.certification stamp
D.color code