国名：美利坚合众国（The United States of America）。
首都： 华盛顿哥伦比亚特区衡弊（Washington D.C.），人口约60.7万（1990年）州碰，其中65.8%是黑人。
The United States of America is a constitutional federal republic, situated primarily in North America. It comprises 50 states and one federal district, and has several territories with differing degrees of affiliation. It is also referred to, with varying formality, as the United States, the U.S., the U.S.A., the U.S. of A., America, the States, or (poetically) Columbia.
Since the mid-20th century, following World War II, the United States has emerged as a dominant global influence in economic, political, military, scientific, technological, and cultural affairs. Because of its influence, the U.S. is considered a superpower and, particularly after the Cold War, a hyperpower by some.
The country celebrates its founding date as July 4, 1776, when the Second Continental Congress—representing thirteen British colonies—adopted the Declaration of Independence that rejected British authority in favor of self-determination.
The structure of the government was profoundly changed in 1789, when the states replaced the Articles of Confederation with the United States Constitution. The date on which each of the fifty states adopted the Constitution is typically regarded as the date that state "entered the Union" to become part of the United States.
The United States of America (also called the United States, the U.S., the USA, America, and the States) is a federal constitutional republic comprising fifty states and a federal district. The country is situated mostly in central North America, where its forty-eight contiguous states and Washington, D.C., the capital district, lie between the Pacific and Atlantic Oceans, bordered by Canada to the north and Mexico to the south. The state of Alaska is in the northwest of the continent, with Canada to the east and Russia to the west across the Bering Strait. The state of Hawaii is an archipelago in the mid-Pacific. The country also possesses several territories in the Pacific and Caribbean.
At 3.79 million square miles (9.83 million km2) and with over 312 million people, the United States is the third or fourth largest country by total area, and the third largest by both land area and population. It is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration from many countries. The U.S. economy is the world's largest national economy, with an estimated 2010 GDP of $14.53 trillion (23% of nominal global GDP and over 19% of global GDP at purchasing-power parity).
Indigenous peoples descended from forebears who migrated from Asia have inhabited what is now the mainland United States for many thousands of years. This Native American population was greatly reduced by disease and warfare after European contact. The United States was founded by thirteen British colonies located along the Atlantic seaboard. On July 4, 1776, they issued the Declaration of Independence, which proclaimed their right to self-determination and their establishment of a cooperative union. The rebellious states defeated the British Empire in the American Revolution, the first successful colonial war of independence. The current United States Constitution was adopted on September 17, 1787; its ratification the following year made the states part of a single republic with a strong central government. The Bill of Rights, comprising ten constitutional amendments guaranteeing many fundamental civil rights and freedoms, was ratified in 1791.
Through the 19th century, the United States displaced native tribes, acquired the Louisiana territory from France, Florida from Spain, part of the Oregon Country from the United Kingdom, Alta California and New Mexico from Mexico, and Alaska from Russia, and annexed the Republic of Texas and the Republic of Hawaii. Disputes between the agrarian South and industrial North over the expansion of the institution of slavery and states' rights provoked the Civil War of the 1860s. The North's victory prevented a permanent split of the country and led to the end of legal slavery in the United States. By the 1870s, its national economy was the world's largest. The Spanish–American War and World War I confirmed the country's status as a military power. It emerged from World War II as the first country with nuclear weapons and a permanent member of the United Nations Security Council. The end of the Cold War and the dissolution of the Soviet Union left the United States as the sole superpower. The country accounts for 41% of global military spending, and it is a leading economic, political, and cultural force in the world.
The United States of America (USA) is a by the fifty states and Washington, d.c. composition constitutional federalism republicanism countries, the United States faces the east Atlantic ocean, faces the Pacific on the west, north to Canada, south to Mexico, Alaska is located in the northwest of the north American continent, Hawaii is the central Pacific islands, and Puerto Rico, northern marianas and overseas territory. On July 4, 1776, the continental congress in Philadelphia through the declaration of independence, declaring that the United States was born. The United States is a multi-cultural and multi-national country, for the world's hottest immigration country, one of the The United States is the United Nations security council is one of the five permanent members. Through decades of cold war, after the break-up of the Soviet union to become the world's only superpower, its economy, politics, science and technology, military, entertainment and so on many
The United States is a Federal Republic constitutional country composed of Washington, D.C., 50 states, Guam and many other overseas territories. Its main part is located in the central part of North America.
The initial version of the world profile of the CIA from 1989 to 1996. The United States has a total area of 9.373 million square kilometers and a population of 333 million. English is commonly used. It is an immigrant country.
the usa is the most developed country in the world. the people there speak english. it is the 4th largest country in the world in area. it's area is just behind china. the capital is Washinton DC. there're 50 states in the usa. the president is Obama. his family lives in the white house. usa's independence day in July 4th. the money they use is called dollars. they also have quarters that'埋配s worth 1/宴宴4 of a dollar. on the back of each quarter, there's a symbol of a state. the national animal is the hawk. there'晌液银re many famous sights such as the Niagara Falls, the Grand Canyon, and the smoky mountain. there's many famous cities in the usa such as new york, chicago, and san fransisco.
美国，即美利坚合众国 The United States of America。
现在一共有 50 个州，领土总面积世界第四，实际土地面积小于俄国及加拿大和中国。人口第三大（小于中国和印度），是世界第一经济大国。美国位于北美洲中部，领土还包括北美洲西北部的阿拉斯加和太平洋中部的夏威夷群岛。美国是个经济发达和高度现代化的国家，其丰富的自然资源和多样的民族文化使它成为极具吸引力的旅游国家。
The United States, that is, the United States of America The United States of America.
Now a total of 50 states, the territory of the total area of the world's fourth, the actual land area is less than in Russia and Canada and China. The third largest population (less than China and India) is the world's largest economy. The United States is located in central North America, the territory also includes the north-western North America in central Alaska, Hawaii and the Pacific Islands. The United States is an economically developed and highly modernized country, its rich culture and diverse natural resources and make it an attractive tourist country.
The United States a total of 50 states plus a Columbia, a vast territory, complicated terrain. Atlantic coast of the eastern part of the many hills for the plains, forests rich in resources and many lakes, it is important to have the city of Washington, New York, Boston, Philadelphia, Miami; the central Great Plains is an important agricultural and pastoral areas, 6400 km long north and south of the Mississippi River runs through, have important city of Atlanta, Chicago, Houston and New Orleans, and so on. At the western Great Plains of the mountain, there is the famous Grand Canyon National Park and Yellowstone National Park; on the west coast of the Pacific region there is scenery Qi Ni, sunny California, San Francisco and Los Angeles, here, the importance of the West Bank city Seattle also. Near the Canadian border in the north near the Great Lakes there is a well-known resort, one of the most scenic spots are magnificent Niagara Falls. In addition, the United States west of the Pacific is located in the Hawaiian Islands on the world-renowned resorts. Also suitable for risk-takers of the Grand Canyon.
To eat American food mainly characterized by salty taste of sweet, chickens, ducks, fish, meat, eggs, seafood and game, especially turkey, beef and goose, it is the general American favorite animal food. Fast food is a typical modern American diet, especially "hamburger", "pie", "hot dogs" the most common and most well-known.