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A、They cannot sleep well. B、They cannot eat well. C、They tend to bite each other. D、They tend to reproduce more. D题目询问当老鼠过于拥挤时,它
A、They cannot sleep well. B、They cannot eat well. C、They tend to bite each other. D、They tend to reproduce more. D题目询问当老鼠过于拥挤时,它
admin
2010-10-14
70
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 effects of over crowded conditions on man. Recent studies have shown that [26] 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 crowed, their behavior pattern and even their health perceptibly change. [27] They cannot sleep and eat well, and signs of fear and tension become obvious. The more crowded they are, the more they tend to bite each other and even kill each other. Thus for rats, population and violence are directly related. Is this a natural law for human society as well? [28] Is adequate space not only desirable, but essential for human survival?
选项
A、They cannot sleep well.
B、They cannot eat well.
C、They tend to bite each other.
D、They tend to reproduce more.
答案
D
解析
题目询问当老鼠过于拥挤时,它们没有表现出以下哪一项行为。听到“它们吃不好,睡不好,表现出明显的紧张和害怕,它们越拥挤,越倾向互相撕咬,甚至要置别的老鼠于死地”,可知只有选项D(它们往往繁衍得更多)没有表现出来。
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大学英语四级
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