B. It is not necessary for Mexico to control its population.
C. Mexico population is younger than that of developed countries.
D. It is not necessary for Mexico to develop its infrastructure.
23. By infrastructure the author means_______.
A. buildings
B. the basic framework of a country, such as schools, services, etc.
C. social demands
D. services and production
24. It may be inferred from the 3rd paragraph that_______.
A. it isnt necessary for Mexico to control its population growth
B. population is likely to grow at a slower pace than in the past
C. the more people there are, the greater the wealth people could generate
D. Mexico should control its population growth because she belongs to the developing countries
25. To check population growth is necessary when_______.
A. there are decreasing productivity gains
B. there are increasing productivity losses
C. we are close to reaching the sustainability limits at a world level
D. people become a cost
21. B 22. C 23. B 24. A 25. C
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