单项选择题

我的工具箱里有几把钳子。（）

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.

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单项选择题

螺旋桨有四个桨叶。（）

A. The helm has four blades.
B. The propeller has forty blades.
C. The windlass has four blades.
D. The propeller has four blades.

单项选择题

从船艏贯穿至船艉的甲板叫主甲板。（）

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.

单项选择题

底漆用于出白金属表面，防止其生锈。（）

A. Topside paint is applied to a bare surface to give protective against rust.
B. Undercoat is applied to a bare surface to give protection against rust.
C. Primer coat is applied to a bare surface to give protection against rust.
D. Topcoat is applied to a bare surface to give protection against rust.