单项选择题

Questions 5 to 7 are based on the following news. At the end of the news item, you will be given 20 seconds to answer the questions.

A．100.
B．103.
C．233.
D．336.

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单项选择题

单项选择题

Questions 5 to 7 are based on the following news. At the end of the news item, you will be given 20 seconds to answer the questions. 您的浏览器不支持 audio 元素。