单项选择题

Questions 8 to 10 are based on the following conversation. At the end of the conversation, you will be given. 15 seconds to answer the questions.
Now listen to the conversation.
What is the main topic of the conversation

A．Food packaging.
B．Varieties of fish.
C．A new snack food.
D．An artificial food flavoring.

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单项选择题

单项选择题

Questions 8 to 10 are based on the following conversation. At the end of the conversation, you will be given. 15 seconds to answer the questions. Now listen to the conversation. What is the main topic of the conversation 您的浏览器不支持 audio 元素。