申請綠卡時，護照頁可以double-sided print 嗎？

來源: 於 2011-01-14 12:59:27 [舊帖] [給我悄悄話] 本文已被閱讀：次

申請綠卡時，護照頁可以double-sided print 嗎？It can save some paper because I have two expired and one unexpired passport need photocopy.
Thanks.