英语作文：你对哪个国家比较熟悉呢？请你把你知道的有关这个国家的知识，写一写吧！

　　The United States of America，hereinafter referred to as the United States, is by the Washington, 50 States, and Guam, and many other overseas territories of the federal republic of constitutional monarchy. Its main part is located in the central North America, the cia world factbook 1989 to 1996, the original version of the total area is 9372610 square kilometers, in the United States in 1997 to 1997 square kilometers (plus the sovereignty of the five great lakes and estuaries, coastal waters and inland sea harbour area), population 320 million, general English, is an immigrant country.