2. 外语
  3. How much living space does a person need? What happens when his space needs are not met? Scientists are making experiments on ra

How much living space does a person need? What happens when his space needs are not met? Scientists are making experiments on ra

admin2009-05-15  77
问题     How much living space does a person need? What happens when his space needs are not met? Scientists are making experiments on rats to try to determine the efforts of over crowded conditions on man. Recent studies have shown that the behaviour of rats is greatly affected by space. If rats have enough living space, they eat well, sleep well and produce their young well. But if their living conditions become too crowded, their behaviour and even their health change obviously. They can’t sleep and eat well, and signs of fear and worry become clear. 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? Is enough space not only satisfactory, but necessary for human survival?
选项 A、a person’s living space needs
B、building and floors
C、equipment and conditions
D、population and violence
答案A
解析
转载请注明原文地址:https://www.kaotiyun.com/show/3Fyd777K
本试题收录于： 公共英语二级笔试题库公共英语（PETS）分类
0

公共英语二级笔试

公共英语（PETS）

相关试题推荐
随机试题
最新回复(0)