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 remedy did the man hear about as an aid to help people sleep

A．Experimental medicines.
B．Special treatment centers.
C．Innovative physical exercises.
D．Flexible work schedules.

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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 remedy did the man hear about as an aid to help people sleep 您的浏览器不支持 audio 元素。