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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