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單項(xiàng)選擇題

Saw dust is used to （）.

A. absorb the oil
B. repair the derrick
C. adjust the boom
D. fill the ballast water

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單項(xiàng)選擇題

Spade is used to （）.

A. get rid of the garbage
B. fill the ballast water
C. repair the derrick
D. adjust the derrick

單項(xiàng)選擇題

（）refers to the paint on the freeboard.

A. Dry paint
B. Topside paint
C. Side paint
D. Primer