American/United States Studies/Civilization美洲/美国研究
                         
                        Agriculture/Agricultural Sciences, General农业科学
                         
                        Agricultural/Biological Engineering & Bioengineer农业与生物工程
                        
                        Agricultural Economics农业经济学
                         
                        African-American/Black Studies非洲裔研究
                         
                        Aerospace, Aeronautical & Astronautical Engineer航空航天工程
                        
                        Adult and Continuing Education and Teaching成人及继续教育教学
                         
                        Acting表演
                         
                        Accounting会计
    &