题目内容
为了唯一确定空间几何体的结构形状，工程上采用增补投影面的方法得到。
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Many poor men thought that fighting in the army was an opportunity for____. This seemed much better than the hard work of everyday life. But they soon found out that war was both ____.[音频]
Both sides of the war eventually ____a draft (强制征兵).This was when men were ____chosen to enter the army whether they wanted to or not.
Some women served as____helping wounded soldiers____. Women had to work very hard to provide for their families.
When General Sherman took the Union Army from Atlanta to Savannah he____much of the land and farms along the way. It was a ____time.
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