单项选择题
A.Rags B.Rats C.Rubbish D.Derricks
A. absorb the oil B. repair the derrick C. adjust the boom D. fill the ballast water
A. get rid of the garbage B. fill the ballast water C. repair the derrick D. adjust the derrick
A. Dry paint B. Topside paint C. Side paint D. Primer
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