Unit 1 Architecture 1
Unit 2 Graduate Education 24
Unit 3 Research Method 43
Unit 4 Organ Transplants 62
Unit 5 Online Education 82
Unit 6 E-Commerce 104
Unit 7 Paintings 129
Unit 8 Mental Disorder 152
Unit 9 Symbiosis 173
Unit 10 Scientists 191
Unit 11 Archaeology 209
Unit 12 Daily Lite 230
Unit 13 Linguistics 250
Unit 14 Packaged World 267
Unit 15 Basic Science 287
Unit 16 Corporate Responsibility 304
Unit 17 Lie Detector 324
Unit 18 Theory of Games 343
Unit 19 Human Cloning 366
Unit 20 Digitization 389
key to the Exercises 411