appendix用a 还是an

appendix用a 还是an 邮件中的附件用appendix 还是enclosure?enclosure :something put in an envelope with a letter 信件中的附件appendix:a part at the end of a book containing esp additional information 书末的附录个人认为用enclosure , 用a还是an 请问用a还是an a/an interview 一次采访用a还是an 字母A前面用a还是an 英语翻译Documentation:The Exit Project requires APA Documentation (Refer to APA Stylesheet).The project requires an annotated Reference Page and in-text (parenthetical) documentation.8.Appendix A:Survey. The survey must have 7-10 appropri an onehundred-year-old man用a还是an I'm just an outsider!用an 还是a? hour前用a还是用an s前面用a还是用an university前面用“a”还是用“an”? year前面用a 还是用an onion前用介词a还是an mp3前用冠词a还是an exciting前面介词用a 还是an University前用不定冠词a还是an? mp4前面用an 还是a