单项选择题

The principle protective coating is （）.

A. cement wash
B. paint
C. bitumen
D. undercoat

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单项选择题

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

A. Cement wash, bitumen and paint
B. Metal primers, undercoats and topcoats
C. Varnishes, heat-resistant paints and anti-fouling paints
D. Cement wash, primer and undercoat

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