21. The three states that have seen the fastest growth in population in the past 20 years are ____.

　　A. California, Arizona and New Mexico

　　B. California, Florida and Nevada

　　C. New York, Texas and Florida

　　D. Arizona, Nevada and Florida

　　22. In American history, ____ refer to those who came to Plymouth on board of Mayflower.

　　A. the English nobles

　　B. the Puritans

　　C. the Pilgrims

　　D. the English adventurers

　　23. After President Jefferson bought the ____ Territory from France, the territory owned by the United States almost doubled.

　　A. Arizona

　　B. Texas

　　C. Louisiana

　　D. California

　　24. President Abraham Lincoln issued the ____, because he realized that he could win support for the Union at home and abroad by making the war a just war against slavery.

　　A. Bill of Rights

　　B. Emancipation of Proclamation

　　C. Declaration of Independence

　　D. Civil Right Act

　　25. The features of the early colonists which have strong influence on the formation of American character are all the following EXCEPT ____.

　　A. religious intolerance

　　B. respect of individual rights

　　C. representative form of government

　　D. a strong spirit of individual enterprise

　　26. Rushed by the Progressive Movement, ____ put forward his program of New Freedom.

　　A. Woodrow Wilson

　　B. Theodore Roosevelt

　　C. Franklin D.Roosevelt

　　D. George Washington

　　27. The Paris Conference which began on Jan 18, 1919 was dominated by the Big Four including ____.

　　A. the United States, the Soviet Union, China and Britain

　　B. the United States, Britain, France, and Italy

　　C. the United States, Britain, Germany, and Japan

　　D. the United States, Britain, France, and the Soviet Union

　　28. In his inaugural speech, ____ said that “the only thing we have to fear is fear itself.”

　　A. Abraham Lincoln

　　B. Theodore Roosevelt

　　C. Franklin D.Roosevelt

　　D. George Washington

　　29. As a result of American economic aid under the Marshall Plan, ____ recovered and began to show signs of development.

　　A. Turkey

　　B. Greece

　　C. Western Europe

　　D. Eastern Europe

　　30. During the Cuban Missile Crisis, the two superpowers stared at each other, with the possibility of ____ looming large.

　　A. a nuclear war

　　B. a chemical war

　　C. the Vietnam War

　　D. the Korean War