上次你发来的学号及密码因为电脑重装系统都弄丢了。
If your products don arrive by the delivery date the company promised, you can request a reshipment or refund.如果你的商品在商家承诺的日期内没有送达,你可以要求重新发货或是退款。
If data bulk is very great, can reserve base expresses backup, reshipment hind undertakes extracting, (professional personage ability undertakes this, discreet) can reduce a few workload.假如数据量很大,可以吧库存基础表备份,重装后进行提取,(这个是专业人士才能进行的,慎重)可以减少一些工作量。