【简答题】选择相对应的中文。 ( ) 1. the United States ( ) 2. a map of Canada ( ) 3. the south of Canada ( ) 4. Niagara Falls ( ) 5. Rocky Mountains ( ) 6. speak English ( ) 7. the White House...
【单选题】Which of the following statements are correct? I. The average economic growth rate in real GDP per person in the United States over the last century was 5 percent per year. II. The United States has...