Electricity

  来源:网络    时间:     
[关键词]考研英语作文  

    Yet, people began to understand how electricity works only a little more than two centuries ago. Nature has apparently been experimenting in this field for million of years. Scientists are discovering more and more that the living world may hold many interesting secrets of electricity that could benefit humanity. All living cell send out tiny pulses of electricity. As the heart beats, it sends out..

相关文章
文章搜索
本类热门
本站所列资源部分收集自网上,本站与内容的出处无关,内容版权皆属原作者所有,如果你认为侵犯了您的版权,请通知我们,我们立即删除.