sample invoice和proforma invoice 有什么区别

sample invoice和proforma invoice 有什么区别 COUNTER SAMPLE 和 PROTO SAMPLE ... invoice invoice Proforma Invoice和 Tax Invoice有何不同? collective invoice 和commercial invoice有没有差别啊, estimation sample 和holdout sample 属于判别分析里的知识. 外贸中sample order和sample goods 如题 physical sample和producton sample是什么意思,有什么区别production eviews中 pairwise sample 和common sample有什么区别 can you send samples by DHL and charge us the DHL freight in sample invoice?这话怎么翻译? sale contract 和 invoice是什么意思啊? specimen 和 sample的区别~如题, writing sample和research proposal 分别是什么? 请问INVOICE 和 PROFORMER INVOICE ,COMMERCAIL INVOICE之间的区别?还有各自在什么情况下才使用! proforma invoice和commercial invoice之间的区别?简单一点就好 请问各位外贸高手proforma invoice和invoice有什么区别啊? 请问下,commercial invoice和original invoice有什么区别吗?