Cover: Aerial view of a city, Magnifier / Shutterstock.com. Unit 1: Extreme wealth inequality in Mexico City, Santa Fe District: Johnny Miller / africanDRONE. Unit 2: Chinese men playing chess, zhuda/Shutterstock.com. Unit 3: Scales of justice, r.classen/Shutterstock.com. Unit 4: Clock mechanism, MarkoV87 / Shutterstock.com. Unit 5: View of Macau old town, Prin Adulyatham/Shutterstock.com. Unit 6: Aerial view of office, Rawpixel.com / Shutterstock.com Unit 7: Warehouse shelving, SasinTipchai / Shutterstock.com Unit 8: Workers in a factory, Frame China / Shutterstock.com Unit 9: Man in front of Moneyshop, Thinglass / Shutterstock.com
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