The thinners can （） paint.

单项选择题（） just looks like a guard standing on the deck.

A.Mast
B.Master
C.Must
D.Main deck

单项选择题（）are used to clean the bridge.

A.Rags
B.Rats
C.Rubbish
D.Derricks

单项选择题Saw dust is used to （）.

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

单项选择题Spade is used to （）.

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

单项选择题（）refers to the paint on the freeboard.

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