单项选择题

水泥涂料用于淡水舱和双层底舱。（）

A. Primer is used for sea water tanks and double bottom tanks.
B. Cement wash is used for fresh water tanks and double bottom tanks.
C. Varnish is used for fresh water tanks and double bottom tanks.
D. Bitumen is used for fresh water tanks and double bottom tanks.

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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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A. The helm has four blades.
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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.