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Unit 1 American Affairs(Ⅰ) 1
Unit 2 American Affairs(Ⅱ) 21
Unit 3 American Affairs(Ⅲ) 60
Unit 4 American Affairs(Ⅳ) 101
Unit 5 American Affairs(Ⅴ) 135
Unit 6 Chinese Affairs 237
Unit 7 Australian,Brazilian,European＆African Affairs 266