Chapter 4 Exercise
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Chapter 4 Exercise
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Chapter 3-exercise
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Chapter 2-exercise
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Chapter 5 exercises
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Exercise 1 chapter1-chapter3
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exercise-chapter 4
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Exercise-Chapter 7(1)
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Exercise-Chapter 10
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exercise-chapter 14
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Exercise-Chapter 13
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Exercises on Chapter 5
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Chapter_03(exercise)
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Chapter3 exercise and test
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exercise of chapter17
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Exercises(错题)
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Exercise (1)-学习文档
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资料：Chapter 4 Exercises(对应老教材第3章题号)
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exercise for chapter 1-2
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chapter5-screw-2
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Unit7 Exercises.ppt
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SpecE_chapter11-16-reading
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Exercises_of_Unit_2
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Additional exercises (Chapter 3)
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chapter2Instruments
