...卫生行政部门 Health Administrative Departments 美国联邦行政部门 United States federal executive departments ; Federal executive department ; Executive Department ; United States national executive departments 行政部门 行政部门 A...
abstract:The United States federal executive departments are among the oldest primary units of the executive branch of the federal government of the United States—the Departments of State, War, and the Treasury all having been established within a few weeks of each other in 1789.