2. 外语
  3. Populations have 3 agents, namely, a birth rate, a death rate, and a growth rate. Birth rates decline, and mortality of young a

Populations have 3 agents, namely, a birth rate, a death rate, and a growth rate. Birth rates decline, and mortality of young a

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问题 Populations have 3 agents, namely, a birth rate, a death rate, and a growth rate.
Birth rates decline, and mortality of young and adults increases when the population approaches______.
选项
答案the limit of resources
解析 参见文章第3段倒数第1句：As the population approaches the limit of resources，birth rates decline，and mortality of young and adults increases．
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大学英语六级

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