单项选择题

Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now, listen to the passage.
What aspect of United States history does the speaker mainly talk about().

A. Employment in the fishing and whaling industries.
B. Nineteenth-century sea captains.
C. The economic importance of sailing ships.
D. The development of the steamship.

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单项选择题

It can be inferred from the conversation that().

A. the two speakers are the student and the professor.
B. the development of large cities in the developing countries is not balanced.
C. the large cities in the developing countries grew as rapidly as those in the developed countries.
D. it’s easy to solve the problems of the large cities.

单项选择题

What is the opening concerned in the conversation().

A. Interviewing an assistant.
B. Applying for the post of assistant.
C. Recruiting an assistant.
D. Training to be an assistant.

Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage. What aspect of United States history does the speaker mainly talk about(). 您的浏览器不支持 audio 元素。

Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now, listen to the passage.
What aspect of United States history does the speaker mainly talk about().