商务英语Business English

Unit1Notes&Notices便条与通知 Lesson1Notes便条 Lesson2Notices通知 Unit2SocialCorrespondence社交信函 Lesson3IntroductiontoLetters商务信函简介 Lesson4LetterofInvitation邀请信 Lesson5LetterofThanks感谢信 Lesson6LetterofCon