文书是企事业单位在内部管理和对外交往过程中形成并使用的具有一定格式的应用文体。在企业,文书一般分为两大部分:一部分用于对外商务交流,如邀请函、贺信、报价函等;另一部分用于企业内部管理,如讲话稿、计划、工作总结等。当然,讲话稿也可能用于商务交流,比如上司参加客户新产品发布会被邀请发言。基本要求 Documents is a formatted application style formed and used by enterprises and institutions in internal management and external communication. In business, the instrument is generally divided into two parts: one for foreign business exchanges, such as invitations, congratulatory letters, quotations, etc .; the other part for internal management, such as speech, plan, work summary. Of course, the speech may also be used for business exchanges, such as the boss to participate in new product launches were invited to speak. basic requirements