单项选择题
Bridge decks, cabin doors and hand rails are usually coated with（）.
A. cement wash
B. white gloss paint
C. bitumen
D. varnish
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A （）can give power to hoist or lower the cargo.
A. crane
B. life winch
C. derrick
D. cargo winch -
单项选择题
Excuse me, may I （）your file?
A.do
B.get
C.lend
D.borrow -
单项选择题
All the cargo wires must be greased （）.
A.well
B.good
C.nice
D.perfect
