“Selective Service Act of 1917”的概念、定义、翻译、参考文献-科学参考

单词	Selective Service Act of 1917
释义	Selective Service Act of 1917 Encyclopedia 历史学美国历史释 Selective Service Act of 1917《选择性兵役法》美国历史上制定的第一个义务兵役法。
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