4. The basic causes of World War I lay in the political, economical and colonial rivalries of the great powers. A. 错误 B. 正确 ...

11. The U. S. A. is known as a “Melting Pot” for its (). A. mixture of religions B. mixture of nationalities C. mixture of climates D. mixture of habits ...

17. The bond is the borrower’s written promise to repay the loan on a certain date and also to pay a certain rate of interest on the borrowed money A. 错误 B. 正确 ...

9. Telephone companies in the United States are not all private businesses. A. 错误 B. 正确 ...

5. The continental USA runs 4505 kilometers from its Atlantic coast to Pacific coast，and 2574 kilometers from Canada to Mexico. A. 错误 B. 正确 ...

19. The Niagara Falls is located on the US and Canadian boundary between lake Erie and lake(). A. Superior B. Michigan C. Huron D. Ontario ...

9. The largest public library in the U. S. is (). A. Library of Congress B. Library of Harvard C. Franklin Library D. Roosevelt Library ...

1. The first American President who inaugurated in Washington City was (). A. George Washington B. Thomas Jefferson C. John Adams D. Andrew Jackson ...

13. The candidate with the most votes in a state wins all of that state’s electoral votes. This is known as the winner-take-all principle. A. 错误 B. 正确 ...

6. Old Faithful is the most famous geyser in the Yellowstone National Park . A. 错误 B. 正确 ...