单项选择题
In the west of the （）lie the Colorado Plateaus and the Columbia Plateaus.
A.Rocky Mountain B.Coast Range C.Cascades Mountains
单项选择题 The Constitutional Monarchy started at the end of the （）century.
单项选择题 The Judicial Branch is headed by （）
单项选择题 Multiple ChoiceThe history of the U.S. is generally agreed to have begun in （）
