目录 Unit 01 Abandoned and Ruined “Big Houses” Unit 02 Slavery in the United States Unit 03 Normal and Abnormal Intestinal Absorption by Humans Unit 04 Professor Unit 05 How to Manage Your Time Unit 06 Amie Schaefer Unit 07 Life of Pi Unit 08 Toy Story Unit 09 Ambulance Unit 10 History of Basketball Unit 11 Amelia Earhart at Childhood (1) Unit 12 Amelia Earhart in Youth (2) Unit 13 Amelia Earhart-Famous Female Aviator (3) Unit 14 Amelia Earhart-Famous Female Aviator (4) Unit 15 Carnival Unit 16 Great Depression Unit 17 Arithmetic Unit 18 Boston Bombing Suspect Charged Unit 19 Dimension Unit 20 Alien Unit 21 Arch Bridge Unit 22 The Efficient Level of Pollution and the Coase Theorem (1) Unit 23 The Efficient Level of Pollution and the Coase Theorem (2) Unit 24 The History of Human Evolution Unit 25 Antelope Unit 26 Import-Export Taxes and Duties in China Unit 27 Obama’s Euro-Crisis Lecture Unit 28 Dunkirk in World War II Unit 29 Close Striking Assault-Martial Arts Unit 30 Antique Unit 31 Oscar Pistorius Awarded Bail Unit 32 Manuel Gonzales with Big Imagination (1) Unit 33 Manuel Gonzales with Big Imagination (2) Unit 34 Nobel Laureate Mo Yan (1) Unit 35 Nobel Laureate Mo Yan (2) Unit 36 5.12 Sichuan Earthquake Unit 37 What Causes Allergies? Unit 38 Blue Whale Unit 39 Types of Volcanic Eruptions Unit 40 Evaluation of the Elderly Patient Unit 41 Amateur vs. Professional Boxing Unit 42 Surgeon Unit 43 Mammals Unit 44 Calendar Types:Solar, Lunar and Lunisolar Calendars Keys to the Exercises
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