Unit 2 Invitation and Arrangement of visits 邀请与答复 Dear Mr/Ms We should like to invite you to attend the 2003 International Fair which will be held from april 29 to May 4 at the above address. Full details on the Fair will be sent in a week We look forward to hearing from you soon, and hope that you will be able to attend Yours faithfully

1. To understand happiness 2. To analyze the structure 3. To comprehend the text 4. To learn the language points 5. To think critically

Chapter 12 Management of Electronic Commerce Security The business world has taken this to heart when it has come to the Internet. Companies have ventured onto the Information Superhighway in increasing numbers to \reduce distribution and marketing costs, eliminate the middleman, increase efficiency, promote impulse transactions and streamline distribution to far-flung locales\as well as to \connect directly with consumers at home, streamline operations and internal

1. Have you or your friend ever been cheated by a manufacturer? Describe your experience to your partner. Reference: Yes. Last year I planned to buy a computer so I could surf the net. I want to find a cheap one that's attractive and eas sy to use. I found

• To understand the Terminology of CAM. • To be able to create CAM operations and generate operation tool paths. • To understand the Postprocessor. UG NX CAM Overview UG CAM Machining Environment Analyzing the Part to Machine Creating CAM Operations Coordinate System of UG NX CAM Tool Paths Postprocessing Operation Navigator

The States Parties to this Protocol, Declaring that effective action to prevent and combat trafficking in persons, especially women and children, requires a comprehensive international approach in the countries of origin, transit and destination that includes measures to prevent such trafficking to punish the traffickers and to protect the victims of such trafficking, including by protecting their internationally recognized human rights

 1.To understand the importance of clauses of quality, quantity, packing and price in a sales contract  2.To learn the methods of expressing the quality of goods in a sales contract  3.To learn different weight calculation methods  4.To learn the marks on transport packing  5.To understand cost accounting methods in export

Suppose we want to move a satellite in a circular orbit to a position ∆ϑ apart in the same orbit, in a time ∆t (assumed to be several orbital times at least). The general approach is to transfer to a lower (for positive ∆ϑ ) or higher (for ∆ϑ < 0 ) nearby

Cloning vectors: 克隆载体 to clone a gene in a vector Expression vectors: 表达载体 to express a gene from a vector Integration vectors: 整合载体 to integrate a gene in a genome through a vector Cloning vectors 1 Plasmid vecters 2 Bacteriophage vectors 3 Cosmids & BACs 4 Eukaryotic vectors Cloning vectors: allowing the exogenous DNA to be inserted, stored, and manipulated mainly at DNA level. expression vectors: allowing the exogenous DNA to be inserted, stored, and expressed

Programming Languages As difficult to discuss rationally as religion or politics. Prone to extreme statements devoid of data. Examples: \It is practically impossible to teach good programming to students that have had a prior exposure to BASIC; as potential programmers they are mentally mutilated beyond hope of regeneration.\(Dijkstra)