8. The continental USA runs () kilometers from its Atlantic coast to Pacific coast，and 2574 kilometers from Canada to Mexico A. 4505 B. 4506 C. 4507 D. 4508 ...

1. ()is the second largest US city in terms of population in the United States of America and the largest industrial city in the country. A. Los Angeles B. Philadelphia C. Chicago D. California ...

13. American government has always been playing an important role in the development of American economy. A. 错误 B. 正确 ...

7. The Columbia River rises in Canada and flows through Washington State and forms part of the boundary between Oregon and Washington. A. 错误 B. 正确 ...

3. From 1901 to 1978, there were altogether 127 people in the USA having won the Nobel Prizes for the research of natural science. A. 错误 B. 正确 ...

20. The president really has enormous power, both in his or her own capacity as the chief executive and acting through members of his or her Cabinet. A. 错误 B. 正确 ...

16. In 1803, the U.S.took advantage of the European War and purchased the vast area of Louisiana. A. 错误 B. 正确 ...

8. The supreme judicial body in the USA is in the District Court. A. 错误 B. 正确 ...

2. The Pilgrims were the first English colonists to permanently settle in New England in what we now know as Massachusetts. A. 错误 B. 正确 ...

15. Which of the following American values did NOT come from Puritanism? A. Separation of state and church B. Respect of education C. Intolerant moralism D. A sense of mission. ...