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  3. How much living space does a person need? What happens when his space requirements are not adequately met? Sociologists and psyc

How much living space does a person need? What happens when his space requirements are not adequately met? Sociologists and psyc

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问题     How much living space does a person need? What happens when his space requirements are not adequately met? Sociologists and psychologists are conducting experiments on rats to try to determine the effect of overcrowded conditions on man. Recent studies have shown that the behavior of rats is greatly affected by space. If rats have adequate living space, they eat well, sleep well, and reproduce well. However, if their living conditions become too crowded, their behavior patterns and even their health perceptibly change. They cannot sleep or eat well, and signs of fear and tension become obvious. The more crowded they are, the more they tend to bite each other even kill each other. Thus for rats, population and violence are directly related. Is this a natural law for human society as well? Is adequate space not only desirable, but also essential for human survival?
How would rats behave when their living conditions become too crowded?
选项 A、They eat a lot and become friendly to others.
B、They sleep little and act quite peacefully.
C、They eat little but sleep soundly.
D、They become nervous and tend to be war-like.
答案D
解析 细节题。本题考查点在文章中间位置的However一词上，However所在句与其后两句，构成句群，根据句群第二句中的tension和第三句中的kill，可以得出答案为D)。
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