单项选择题

Which of the following statement is CORRECT（）……

Question 14 and 15 are based on the following news. At the end of the news item, you will be given 30 seconds to answer the questions. Now listen to the news.

Which of the following statement is CORRECT（）

A．Drastic changes in the weather have been common since ancient times.
B．The change in weather from very cold to very hot lasted over a century.
C．The scientists have been studying ice to forecast weather in the future.
D．The past 10,000 years have seen minor changes in the weather.

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