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.
Why is it important to quick freeze fresh food

A．The cells of plants and animals are damaged by slow freezing.
B．It saves time in the food production process.
C．It reduces the amount of energy required to freeze the food.
D．The food defrosts more quickly.

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单项选择题

What is the purpose of the talk

A．To introduce a speaker to a group.
B．To provide background information for a special exhibit.
C．To describe an upcoming video presentation.
D．To introduce a lecture series.

单项选择题

According to the speaker, what does the veto message explain

A．Why the President opposes a bill.
B．How lawmakers want to revise a bill.
C．Why a deadline has not been met.
D．When lawmakers plan to end their session.

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. Why is it important to quick freeze fresh food 您的浏览器不支持 audio 元素。

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.
Why is it important to quick freeze fresh food