USCIS已经取消<ref>https://www.uscis.gov/news/alerts/uscis-confirms-elimination-of-blank-space-criteria</ref>了2020年初实施的强制N/A要求<ref>https://twitter.com/uscis/status/1217194711821307911</ref>,现在表格内可以留空,不强行要求所有不适用的空白都要填写N/A | USCIS已经取消<ref>https://www.uscis.gov/news/alerts/uscis-confirms-elimination-of-blank-space-criteria</ref>了2020年初实施的强制N/A要求<ref>https://twitter.com/uscis/status/1217194711821307911</ref>,现在表格内可以留空,不强行要求所有不适用的空白都要填写N/A |