单项选择题
A. There are some saws in my toolbox. B. There are some pairs of pliers in my toolbox. C. There are some spanners in my toolbox. D. There are some tools in my toolbox.
A. The helm has four blades. B. The propeller has forty blades. C. The windlass has four blades. D. The propeller has four blades.
A. The deck from bow to stern is called the main deck. B. The deck from stern to bow is called the tweendeck. C. The deck from bow to stern is called the upper deck. D. The deck from stern to bow is called the lower deck.