（）are the three different coatings which can protect metal from corrosion.

单项选择题The basic types of paint used on a ship are （）.

A. cement wash, bitumen and paint
B. primer, undercoats and top coats
C. topside paint, boot-topping paint and bottom paint
D. primer, cement wash and paint

单项选择题We need different kinds of paint for （）areas.

A.every
B.each
C.different
D.same

单项选择题For painting, the surface of a ship’s hull is divided into （）areas.

A.two
B.three
C.four
D.five

单项选择题The hawser should be （）.

A. take great care of
B. take great careful of
C. taken great care of
D. taking great care of

单项选择题You should （）great care of this line.

A.make
B.take
C.have
D.wash