Unit 1 Introduction of Business Letters1 Case One2 Case Two6 Case Three7 Case Four8 Case Five9 Unit 2 Establishment of Business Relations16 Case One17 Case Two18 Unit 3 Enquiry & Reply26 Case One27 Case Two28 Unit 4 Firm Offer & Non-firm Offer36 Case One37 Case Two38 Unit 5 Counter Offer45 Case One46 Case Two46 Case Three47 Case Four47 Unit 6 COnfirmation & Acceptance53 Case One54 Case Two55 Case Three56 Case Four56 Case Five57 Unit 7 Terms of Payment64 Case One66 Case Two66 Case Three67 Case Four69 Case Five72 Case Six72 Unit 8 Examination of Letter of Credit81 Case One83 Case Two83 Case Three84 Case Four84 Unit 9 Packing & Shipment91 Case One92 Case Two92 Case Three93 Case Four94 Unit 10 Insurance100 Case One101 Case Two102 Case Three102 Case Four103 Unit 11 Orders & Contracts110 Case One111 Case Two116 Unit 12 Complaints & Claims125 Case One126 Case Two126 Case Three127 Case Four127 Case Five127 Keys to Exercises133 Keys to Unit 1133 Keys to Unit 2134 Keys to Unit 3137 Keys to Unit 4140 Keys to Unit 5141 Keys to Unit 6142 Keys to Unit 7145 Keys to Unit 8146 Keys to Unit 9148 Keys to Unit 10150 Keys to Unit 11152 Keys to Unit 12155 附录158 附录A PROMISSORY NOTE（本票）158 附录B COMMERCIAL DRAFT （商业汇票）158 附录C BANK DRAFT（银行汇票）159 附录D INSPECTION CERTIFICATION （检验证书）159 附录E BILL OF LADING（提单）160 附录F SHIPPING NOTE （海运出口托运单）161 附录G SHIPPING ORDER（装货单）162 附录H PROFORMA INVOICE （形式发票）162 附录I PACKING LIST（装箱单）163 参考文献164
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