单项选择题

Questions 21 to 23 are based on the following news. At the end of the news item, you will be given 15 seconds to answer the questions.
Now, listen to the news.
The fire was brought under control

A．within 20 minutes.
B．within 30 minutes.
C．within 40 minutes.
D．within two hours.

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单项选择题

单项选择题

Questions 21 to 23 are based on the following news. At the end of the news item, you will be given 15 seconds to answer the questions. Now, listen to the news. The fire was brought under control 您的浏览器不支持 audio 元素。