修訂版前言 初版前言 CENERAL INTRODUCTION TO CECL(for the teacher) UNIT 1: PROCESSES AND CYCLES UNIT 2: ADVERTISING UNIT 3: SPORTS UNIT 4: JOBS UNIT 5: REVIEW MID-TERM TEST UNIT 6: GENERATIONS AND THE FAMILY UNIT 7: HISTORY AND GOVERNMENT UNIT 8: TOURISM UNIT 9: ENVIRONMENT & RESOURCES UNIT 10: REVIEW FINAL TEST