3. A _____ has a validity time, within which it can not be altered, changed or withdrawn.
A、offer
B、quotation
C、firm offer
D、quote
商务英语写作实践

章节列表

Chapter 2 Enquiries and Replies17Chapter 3 Offers and Counter-offers18Chapter 4 Orders and Their Fulfillment18Chapter 5 Packing18Chapter 6 Insurane18Chapter 7 Shipment17Chapter 8 Payment18Chapter 9 Complaints and Claims18Chapter 10 Agency17Chapter 11 International Business Contracts17Chapter 12 Other Miscellaneous letters18Final Exam40