Roger Clem and Richard Huganir of the Johns Hopkins University School of Medicine made the discovery while studying mice conditioned to associate a particular sound with an electric shock.
这种物质是约翰霍普金斯大学医学院的罗杰·克莱姆教授和理查德哈甘耐尔教授在研究训练老鼠把一种特定的声音和电击联系在一起这一课题时发现的。
1982-1985 Post-graduate student of Farmland and Water Conservancy Engineering at the Graduate School of North China University of Water Conservancy and Electric Power;
1982年至1985年华北水利水电学院北京研究生部农田水利工程专业研究生；
We can't go to school, make our electric appliance work, and make the machine work in the factory.
我们不能去上学，让我们的电器工作，工厂的机器工作。
Everyday, we go to school from home, walking, by bike, by electric bike or go and come back with the guide of our parents.
我们每天都要从家里到学校，或步行或自行车或电动车，又或是父母接送。
This article introduces the electric library in the middle school which both provides the users needing information and the characteristic services of the several kinds of functions.
介绍了中学电子图书馆，除了能提供用户所需的各种信息外，还能提供的几种具有不同功能的特色服务。
High school or technical school degree. Be able to use the electric instrument correctly.
高中及技术学校以上，能正确使用电动机具。
High school or technical school degree. Be able to use the electric instrument correctly.
高中及技术学校以上，能正确使用电动机具。
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