单项选择题

Questions 23 and 24 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news.
According to the expert’s study, the level of happiness in which period of life is the lowest

A．Childhood.
B．Young age.
C．Middle age.
D．Old age.

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单项选择题

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Questions 23 and 24 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news. According to the expert’s study, the level of happiness in which period of life is the lowest 您的浏览器不支持 audio 元素。