单选题The hull and the superstructure are two main parts of the ship. They are a ship’s coat. （）A船体在上层建筑里，他们是船舶的外衣。B船体和上层建筑是船舶的两个主要部分。它们是船舶的外衣。C船体和上层建筑都很重要，它们是船舶的主体。D船体和上层建筑是船舶的两个主要部分。它们是船舶的主体。
单选题
The hull and the superstructure are two main parts of the ship. They are a ship’s coat. （）
A
船体在上层建筑里，他们是船舶的外衣。
B
船体和上层建筑是船舶的两个主要部分。它们是船舶的外衣。
C
船体和上层建筑都很重要，它们是船舶的主体。
D
船体和上层建筑是船舶的两个主要部分。它们是船舶的主体。
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