相关考题
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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
