单项选择题
In the political area,the Progressive Movement wanted to（）
A.improve the living conditions of urban poor B.reform the national government C.change election systems in city and state governments and check corruption D.check corruption in city and state governments
单项选择题 The Progressive Movement was（）
单项选择题 The most important features in the growth of American economy in the early 20th cenruty were（）
单项选择题 One of the important decisions at the Yalta Conference was（）
