听力内容
参考听力
- A、Where the Americans came from.
- B、The size of the American population.
- C、Land in United States.
- D、American Indians.
正确答案:A
答案解析:有
参考听力
- A、The English.
- B、The Dutch.
- C、American Indians.
- D、Blacks from Africa.
正确答案:C
答案解析:有
参考听力
- A、Around 40 million.
- B、140 million.
正确答案:A
答案解析:有
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