Notes &TipsAnalysis of supercoiled DNA by agaro gel electrophoresis using low-conducting sodium threonine mediumTomomi Ishido,Mitsuru Ishikawa,Ken Hirano *Health Technology Rearch Center,Natio
World Wide Fund for NatureThe World Wide Fund for Nature (WWF) is an international non-governmental organization working on issues regarding the conrvation, rearch and restoration of the environme
stride病人与医生的英语对话《失眠症》失眠是指无法入睡或无法保持睡眠状态,导致睡眠缺乏。失眠对于现代人来说不是一件稀奇事,不少人都患有失眠症。下面就是一段失眠症病人与医生的对话。病人:早上好,大夫Patient:Good morning, doctor.医生:早上好,哪里不舒服?Doctor:good morning. What ems to be the trouble?病人:我最近有点