The United States has a federal system. What does this mean?
【正确答案】：The Constitution set up a federal system of government which has two layers of rule. There is central or federal government for the nation which alone has the power to answer questions that affect the nation as a whole. There are also state and local governments. Each layer of government has separate and distinct powers laid down in the Constitution.
【题目解析】：
参见教材P241。
