Lesson 1 Text A Airline Services(Ⅰ) Text B Rapid Technological Change Lesson 2 Text A Airline Services(Ⅱ) Text B High-Growth Airline Industry Lesson 3 Text A Telephone Reservations(Ⅰ) Text B The Regulation of Intemational Airline Services(Ⅰ) Lesson 4 Text A Telephone Reservations(Ⅱ) Text B The Regulation of Intemational Airline Services(Ⅱ) Lesson 5 Text A Telephone CaUs for Information(Ⅰ) Text B The Structure of Airline Costs(Ⅰ) Lesson 6 Text A Telephone CaUs for Information(Ⅱ) Text B The Structure of Airline Costs(Ⅱ) Lesson 7 Text A Ticketing and Fares(Ⅰ) Text B Effective Marketing Planning(Ⅰ) Lesson 8 Text A Ticketing and Fares(Ⅱ) Text B Effective Marketing Planning(Ⅱ) Lesson 9 Text A The Airport(Ⅰ) Text B Airport(Ⅰ) Lesson 10 Text A The Airport(Ⅱ) TextB Airport(Ⅱ) Lesson 11 Text A Baggage(Ⅰ) Text B Factors Affecting Passenger Demand Lesson 12 Text A Baggage(Ⅱ) Text B Income and Price Elasticities of Demand Lesson 13 Text A The Departing and Arriving Passenger(Ⅰ) Text B Ptoblems in Airline Scheduling(Ⅰ) Lesson 14 Text A The Departing and Arriving Passenger(Ⅱ)