Abstract: This treatise uses TFA concept and its analytic method to discuss the differences and characteristics of the presupposition, entailment and affirmance.

文章运用TFA概念和分析方法，探讨预设、蕴含和断言之间的区别及运作特点。

Revert suggestion: when received the affirmance faxed by the issuing bank,according to the suggestion ,make corresponding register, inform the accepting network dealing with respectively.

受理授权中心收到回的《认书》，的回复意见进相应的授权登记后，通知受理网点做相应处理。