請教8老師，有關中國公民同時擁有美國綠卡和加拿大楓葉卡，有什麽弊端？美國和加拿大允許嗎？謝謝

來源: miso 於 2013-12-21 22:20:38 [舊帖] [給我悄悄話] 本文已被閱讀：次

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