精选优质文档-倾情为你奉上1.The United States is the worlds oldest surviving federation. It is a constitutional republic.(宪政共和国)Federal(联邦) and state judicial(司法的) and cabinet officials are typically nominated(提名) by the executive branch(行政部门) and approved by the legislature(立法机关), although some state judges and officials are elected by popular vote.(普选) In the American federalist system, citizens are usually subject to three levels of government: federal, state, and local.The government is regu