单项选择题

Questions 17 to 20 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.
What does the speaker warn the students against doing

A．Gathering non-relevant materials.
B．Stealing another person’s ideas.
C．Sharing notes with someone else.
D．Handing in assignments lat

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单项选择题

单项选择题

Questions 17 to 20 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. What does the speaker warn the students against doing 您的浏览器不支持 audio 元素。