2. 职称英语
  3. Populations have 3 agents, namely, a birth rate, a death rate, and a growth rate

Populations have 3 agents, namely, a birth rate, a death rate, and a growth rate

游客2024-05-15  57
问题 Populations have 3 agents, namely, a birth rate, a death rate, and a growth rate. [br] Animals can not survive some catastrophic events such as starvation, disease, or competition from other species.
选项 A、Y
B、N
C、NG
答案 C
解析 参见文章第2段第3句：However，eventually reach the upper limits of the resources；they then decline sharply because of some catastrophic events such as starvation，disease，or competition from other species．其中并没有提及animals can not survive 之类的问题。
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