SHUTTLE HISTORY 1952 FULLY REUSABLE LAUNCH VEHICLE CONCEPT DISCUSSED 1962 FULLY REUSABLE VEHICLE SERIOUSLY CONSIDERED AIR FORCE STUDIED PROJECT DYNASOAR. WHICH WAS CANCELLED IN1969 1969 NASA ADOPTED THE IDEA OF A FULLY REUSABLE SPACE SHIP

浙江大学医学院：《医学史简论 A Brief History of Medicine》课程教学资源（PPT课件）A Brief History of Medicine（六）

浙江大学医学院：《医学史简论 A Brief History of Medicine》课程教学资源（PPT课件）A Brief History of Medicine（五）

 Introduction of Immunology  Brief History of Immunology

浙江大学医学院：《医学史简论 A Brief History of Medicine》课程教学资源（PPT课件）A Brief History of Medicine（三）

浙江大学医学院：《医学史简论 A Brief History of Medicine》课程教学资源（PPT课件）A Brief History of Medicine（二）

Part IV The Literature of Realism The Gilded Age in American History

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CHAPTER 4 POLITICS IN THE AFTERMATH OF REVOLUTION: THE ERA OF YUAN SHIH-K'AI, 1912-16 CHAPTER 5 A CONSTITUTIONAL REPUBLIC: THE PEKING GOVERNMENT, 1916-28