單項選擇題

Cribbing is（）.

A.wooden blocks or dunnage placed between a deck load and the deck
B.the chains and shackles used to secure a deck cargo
C.a crate in which a deck cargo is packaged
D.cardboard separation pieces placed between deck loads to prevent chafing

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單項選擇題

At least（）radar transponder shall be carried on each side of every cargo ship of 500 gross tonnage and upwards.

A.one
B.two
C.three
D.four

單項選擇題

As you hold a piece of manila line vertically in front of you，the strands run from the lower left to the upper right.Which type of line is this（）.

A.Right-hand laid
B.Cable-laid
C.Sennet-laid
D.Water-laid

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Cribbing is（）.

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At least（）radar transponder shall be carried on each side of every cargo ship of 500 gross tonnage and upwards.

As you hold a piece of manila line vertically in front of you，the strands run from the lower left to the upper right.Which type of line is this（）.

99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

As you hold a piece of manila line vertically in front of you，the strands run from the lower left to the upper right.Which type of line is this（）.