（） just looks like a guard standing on the deck.

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

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上一题目录下一题

单项选择题

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

单项选择题

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

单项选择题

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

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