首页
登录
职称英语
[audioFiles]2015m3s/audio_ezfj_ezflisteningd_20151_055[/audioFiles]
[audioFiles]2015m3s/audio_ezfj_ezflisteningd_20151_055[/audioFiles]
游客
2023-11-05
52
管理
问题
选项
答案
Living Space
How much living space does a person need? What happens when his space needs are not met? Scientists are doing experiments on rats to try to determine the effects of overcrowded 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 not 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? These are interesting questions.
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3161767.html
相关试题推荐
[audioFiles]audio_ezfm_0265(20104)[/audioFiles]
[audioFiles]2015m3s/audio_ezfj_ezflisteningd_20151_094[/audioFiles]
[audioFiles]2015m3s/audio_ezfj_ezflisteningd_20151_092[/audioFiles]
[audioFiles]2015m3s/audio_ezfj_ezflisteningd_20151_004[/audioFiles]
[audioFiles]2015m3s/audio_ezfj_ezflisteningd_20151_002[/audioFiles]
[audioFiles]2015m3s/audio_ezfj_ezflisteningd_20151_001[/audioFiles]
[audioFiles]2015m3s/audio_ezfj_ezflisteningd_20151_176[/audioFiles]
[audioFiles]2015m3s/audio_ezfj_ezflisteningd_20151_160[/audioFiles]
[audioFiles]2015m3s/audio_ezfj_ezflisteningd_20151_158[/audioFiles]
[audioFiles]2015m3s/audio_ezfj_ezflisteningd_20151_157[/audioFiles]
随机试题
Anewcitymaybeexciting,butamovetoanewcitycanbedifficult.Herea
Theauthorcitestheexampleofthe16-year-oldAlbanianhigh-schooldrop-outto
[originaltext]M:MathDepartment,DoctorWebsterspeaking.W:Hello,Professor
A.归脾汤B.桃核承气汤C.槐花散D.温经汤E.当归补血汤治疗心脾两虚、气血不足
4月22日,新疆首个高原机场()机场通航。A.地窝堡国际机场 B.石河子
左边给定的是纸盒外表面的展开图,右边哪一项能由它折叠而成?请把它找出来。 A.
为了有效实施投资计划并降低风险,《证券投资基金管理暂行办法》规定,单个股票基金投
测量主要是一种收集资料数据的过程,是根据某种标准和一定的操作程序,将学生的学习(
甲因不正当竞争行为被市场监督管理局处以罚款10万元,甲不服,提起了行政复议。在行
土围堰内坡脚与基坑项边缘的距离根据河床土质及基坑开挖深度而定,但不得小于(
最新回复
(
0
)