试题难度：难度：中档 试题类型：探究题 试题内容：在近代，英、法、德、美四国通过资产阶级革命或资产阶级改革分别建立了怎样的政体？比较英德政体的异同。说明美国1781年宪法是如何实现权力的“制约与平衡”的。_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________