单项选择题


Questions 1 to 5 are based on an interview. At the end of the interview you will be given 10 secon& to answer each of the following five questions.
Now listen to the interview.

If a country has a population of 20 million and its rate of natural population increase is 2%, after 34 years, the country will have a population of ______.

A.80 million
B.60 million
C.50 million
D.40 million
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