On March 1, 2003, service and benefit functions of the U.S. Immigration and Naturalization Service (INS) transitioned into the Department of Homeland Security (DHS) as the U.S. Citizenship and Immigration Services (USCIS).
那个连接只是个人经验,只能提供参考,
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那个连接只是个人经验,只能提供参考,
你可以去官方网站找找看有没有信息.