31. ____ visit to China ended twenty-three years of hostility and led to the establishment of diplomatic relations in January ____.
A. President Nixon’s; 1972
B. Jimmy Carter’s; 1978
C. President Nixon’s; 1979
D. George Bush’s; 1989
32. After long and difficult negotiations in Paris, the U. S. and ____ signed a cease-fire agreement on January 27, 1973.
A. South Vietnam
B. North Vietnam
C. the Soviet Union
D. Korea
33. Which of the following is NOT true of U.S. foreign trade?
A. Canada is the largest single source of goods imported by the United States.
B. Outside of North America, Asia is the largest source of imports.
C. The U.S. share of world trade has decreased in recent years.
D. Whenever the American economy is in trouble, the economy of other countries is affected.
34. When the delegates met at Philadelphia in 1787, their task was ____.
A. to write a new constitution
B. to adopt the Articles of Confederation
C. to establish a new form of government
D. to revise the Articles of Confederation
35. Abraham Lincoln was elected President as the candidate of ____ in 1860.
A. the Democratic Party
B. the Republican Party
C. the Whig Party
D. the Conservative Party