单项选择题
A. The bosun is cleaning the heavy paint on deck. B. The bosun is scraping the heavy paint on deck. C. The bosun is scraping the loose paint on deck. D. The bosun is cleaning the loose paint on deck.
A. The hull is divided into a number of watertight compartments. B. The hull is divided into a number of gastight compartments. C. The hull is divided into a number of water compartments. D. The hull is divided into a number of tight compartments.
A. Varnish gives a clear protective coat to steelwork. B. Primer gives a clear protective coat to woodwork. C. Varnish gives a clear protective coat to woodwork. D. Primer gives a clear protective coat to metalwork.