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, adopting (1787) a new constitution that went into effect after 1789. The nation soon began to expand westward. Growing tensions over the issue of black slavery divided the country along geographic lines, sparking the secession of the South and the Civil War (1861-1865). The remainder of...
The center of the conterminous United States is a great sprawling interior lowland, reaching from the ancient shield of central Canada on the north to theGulf of Mexicoon the south. To east and west this lowland rises, first gradually and then abruptly, to mountain ranges that divide it from...
ON THE DISCOVERY OF THE MISSISSIPPI, AND ON THE SOUTH-WESTERN, OREGON, AND NORTH-WESTERN BOUNDARY OF THE UNITED STATES.Falconer, ThomasShoal Creek Publishers Inc
The United States of America is the world's third largest country in size and nearly the third largest in terms of population.
Paul Minneapolis North Star State; Gopher State Land of 10,000 Lakes West North Central Mississippi MS 2,961,279 48,432 Jackson Jackson Magnolia State East South Central Missouri MO 6,154,913 69,707 Jefferson City Kansas City Show-me State West North Central Montana MT 1,084,225 147,040 ...
fourth-largest country in the world. It is a constitutional based republic located in North America, bordering both the North Atlantic Ocean and the North Pacific Ocean, betweenMexicoandCanada. There are 50 states and the District of Columbia. US major rivers are Colorado, Mississippi and ...
population density of the United States Encyclopædia Britannica, Inc. Faneuil Hall Night view of Faneuil Hall, Boston. Geoff Tompkinson/GTImage.com (A Britannica Publishing Partner) Gateway Arch The Gateway Arch (left) on the west bank of the Mississippi River in St. Louis, Missouri. ...
44.A [主旨大意题。结合第一段的主题句“The Mississippi River flows down the middle of the United States to the Gulf of Mexico”可知本文主旨。]45.D [细节理解题。由首段“Right now,melted snow and heavy rains from the north are moving south.It has been the worst flooding in eighty years ...
The southern United States includes the states of Alabama, Arkansas, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, Oklahoma, South Carolina, Tennessee, Virginia, West Virginia, Florida and Texas. The region covers a vast distance and includes many different landscapes, cultures, and histo...