双十一囤课攻略:抢学位送课时,学习资料包免费得!
年末钜惠,课程大战最后一天! 错过这次再等一年 那福利你冲不冲?冲!冲!冲! 翰林双十一狂欢时间 2022年11月3日-11月15日 1、报名课程,返优惠券 双十一狂欢期间 报名翰林任意课程达到XX课时 额外获赠优惠券 ...
年末钜惠,课程大战最后一天! 错过这次再等一年 那福利你冲不冲?冲!冲!冲! 翰林双十一狂欢时间 2022年11月3日-11月15日 1、报名课程,返优惠券 双十一狂欢期间 报名翰林任意课程达到XX课时 额外获赠优惠券 ...
2022年11月14日,美国国务院、教育与文化事务局和国际教育协会(IIE)合作发布了《2022年美国门户开放报告》。提出门户开放的内容有哪些?其中关于国际学生的调查结果显示,2021至2022学年,美国大学国际学生数量...
Biochemical Tests: Proteins The Biuret test can be carried out quickly and easily in a lab to determine if a sample contains proteins Biuret ‘reagent’ contains an alkali and copper (II) sulfate whi...
Biochemical Tests: Lipids Identifying biological molecules Different qualitative reagents can be used to identfy the presence of biological molecules in samples Ethanol is used to identify lipids B...
《哈佛国际评论》学术写作挑战 秋季赛报名倒计时 Harvard International Review Academic Writing Competition 适合学生 全球9~12年级中学生,接受2人合作投稿 参赛时间(秋季赛) ● 报名截止时间:2022年11月15...
Biochemical Tests: Reducing Sugars & Starch Benedict’s solution can be used to carry out a semi-quantitative test on a reducing sugar solution to determine the concentration of reducing sugar p...
Practical: Factors Affecting Membrane Structure & Permeability The permeability of cell membranes is affected by different factors or conditions, such as: Temperature Solvent concentration &nbs...
Practical: Investigating Water Potential Practical 1: Investigating water potential using potato cylinders It is possible to investigate the effects of immersing plant tissue in solutions of differ...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记:4.5.2 Disposal of Addition Polymers Disposal of Addition Polymers Addition polymers are formed by the joining up of many small molecules wit...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记:4.5.1 Addition Polymers Monomers Polymers are large molecules of high relative molecular mass and are made by linking together large numbers...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记:4.4.2 Bromine & Alkenes Bromine & Alkenes Alkenes are a homologous series of hydrocarbon compounds with at least one double bond bet...
近日官网更新了数学&化学的半决赛入围名单,至此北美赛区完整的半决赛入围名单已新鲜出炉!让我们来看看吧! 点我查看丘奖总决赛-内地赛区入围名单👆 根据官网赛程安排,入围的学生将于11月19日参与半...
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