单项选择题

Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now listen to the passage. Why does the professor mention bones and shells

A．To give an example of natural shapes.
B．To describe early sculpture.
C．To illustrate their use as tools.
D．To demonstrate their role as decorative objects.

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单项选择题

What is the principle idea of the laisser faire policy

A．The rights of private business owners should be protected.
B．The government shouldn’t interfere in private business.
C．Politicians should support industrial growth.
D．Competition among companies should be restricted.

单项选择题

What does the man find surprising about the woman

A．She has never been to Gettysburg.
B．She took a political science course.
C．Her family still goes on vacation together.
D．She’s interested in the United States Civil War.

Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now listen to the passage. Why does the professor mention bones and shells 您的浏览器不支持 audio 元素。

Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now listen to the passage. Why does the professor mention bones and shells